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FORM 5 CHEMISTRY REVISION

Total questions: 500

Worksheet time: 6hrs 9mins

Name
Class
Date
1.

Which of the following substance is an element?

a)

Water

b)

Neon

c)

Oxygen

2.

Which of the following substances exists as atoms?

a)

Naphthalene

b)

Magnesium

c)

Chlorine gas

d)

Lead(II) bromide

3.

The following table shows the melting point and boiling point of four substances.

Which substance is a liquid at room temperature?

a)

A

b)

B

c)

C

d)

D

4.

Substance X exists in solid state at 200 ⁰C. Which of the following are the melting point and the boiling point of substance X?

a)

Melting point: -50°C

Boiling point: 100°C

b)

Melting point: 35°C

Boiling point: 185°C

c)

Melting point: 115°C

Boiling point: 668°C

d)

Melting point: 250°C

Boiling point: 750°C

5.

What is the nucleon number of atom shown?

a)

11

b)

12

c)

22

d)

23

6.

The following information is about silicon atom.

· Proton number = 14

· Nucleon number = 28


How many valence electrons are in the silicon atom?

a)

2

b)

4

c)

8

d)

14

7.

Ion W2+ has an electron arrangement of 2.8 and nucleon number is 24. What is the number of neutron of atom W?

a)

36

b)

24

c)

12

d)

2

8.

Magnesium has 12 protons in the nucleus of its atom. Which is following the electron arrangement of the magnesium ion?

a)
b)
c)
d)
9.

A silver atom has 47 protons and its nucleon number is 108. A silver ion, Ag+ is formed when a silver atom donates 1 electron.

How many neutrons in a silver ion, Ag+?

a)

59

b)

60

c)

61

d)

62

10.

A calcium atom has 20 protons and its nucleon number is 40. A calcium ion, Ca2+ is formed when a calcium atom donates 2 electrons.

How many neutrons in a calcium ion, Ca2+?

a)

20

b)

22

c)

18

d)

40

11.

Z- ion has 18 neutron and 18 electron.

Which of the following is the proton number for atom Z?

a)

17

b)

18

12.

An ion T2- has an electron arrangement of 2.8. What is the proton number for the atom of element T?

a)

4

b)

6

c)

8

d)

10

13.

The diagram shows the electrons arrangement of an atom of Y. Y is not the actual symbol of the element. What is the position of element Y in the Periodic Table of Elements?

a)

Group 2, Period 3

b)

Group 12, Period 2

c)

Group 12, Period 3

14.

Magnesium exists naturally as three isotopes. The natural abundance of ²⁴ᴹᵍ

is 79%, ²⁵ᴹᵍ is 10% and ²⁶ᴹᵍ is 11%. Calculate the relative atomic mass of magnesium.

a)

12.01

b)

24.32

c)

25.00

d)

36.00

15.

Which of the following isotopes is used to detect the leakage of underground pipe?

a)

Carbon-14

b)

Sodium-24

c)

Cobalt-60

d)

Iodine-131

16.

Which of the following is the use of the isotope iodine-131?

a)

Treat thyroid gland cancer.

b)

Generate electricity for satellites.

c)

Detecting underground pipe leakage.

d)

Estimate the age of fossils.

17.

What is the empirical formula for the compound?

a)

CH2O

b)

C2H2O2

c)

CH2O2

d)

C2H5O2

18.

How many lithium atoms that have the same mass as 2 nitrogen atoms?

[Relative atomic mass: Li = 7; N = 14]

a)

2

b)

4

c)

6

d)

8

19.

What is the relative molecular mass of sulphur hexafluoride?

[Relative atomic mass: F = 19; S = 32]

a)

51

b)

108

c)

133

d)

146

20.

Which of the following substances has 3.01 x 1023 of atom?

Avogadro Constant : 6.02 x 1023 mol-

a)

0.25 mole of water

b)

0.5 mole of carbon

c)

0.5 mole of oxygen gas

d)

0.3 mole of hydrogen gas

21.

What is the volume of a sample of ammonia gas, NH3 with a mass of 5.1 g at room condition?

[Gas molar volume = 24 dm3 in room condition; Relative atomic mass H : 1; N : 14]

a)

7.2 dm3

b)

12 dm3

c)

14.4 dm3

d)

18 dm3

22.

Which of the following is the correct chemical formula for copper(II) iodide?

a)

CuI

b)

Cu2I

c)

CuI2

d)

Cu2I2

23.

1.2 g of element Y bonds with bromine to produce 6 g of a compound with the empirical formula of YBr2. What is the relative atomic mass of element Y?

[Relative atomic mass: Br = 80]

a)

20

b)

36

c)

40

d)

56

24.

The following is a chemical equation:

H2SO4(aq) + 2KOH(aq) → K2SO4(aq) + xH2O(l)

What is the value of x?

a)

1

b)

2

c)

3

d)

4

25.

2NaClO3 (s) → 2NaCl (s) + 3O2 (g)  
12.00 moles of NaClO3 will produce how many grams of O2?

Given relative atomic mass O = 16

a)

256 g of O2

b)

576 g of O2

c)

288 g O2

26.
2 KClO3 → 2 KCl + 3 O2
How many moles of oxygen are produced when 6.7 moles of KClO3 decompose completely?
a)

6.7 mol

b)

1.0 mol

c)

10.1 mol

d)

4.5 mol

27.

Element X has an proton number of 19. Which group does this element belong to?

a)

Group 1

b)

Group 7

c)

Group 17

d)

Group 19

28.

Element H has an proton number of 11. In which period of the periodic table would you find this element?

a)

Period 1

b)

Period 2

c)

Period 3

d)

Period 4

29.

Element G has a proton number of 11. Where is element D located in the Periodic Table of Elements?

a)

Group 11, Period 3

b)

Group 11, Period 2

c)

Group 1, Period 3

d)

Group 1, Period 2

30.

An atom of Element D has 6 valence electrons and 3 shells occupied with electrons. Where would you find this element in the Periodic Table of Elements?

a)

Group 16, Period 3

b)

Group 13, Period 4

c)

Group 16, Period 2

d)

Group 2, Period 3

31.

Which compound is an ionic compound?

a)

Aluminium chloride

b)

Carbon dioxide

c)

Potassium oxide

d)

Hydrogen chloride

32.

Which of the following substances is a covalent compound?

Antara berikut, bahan yang manakah adalah sebatian kovalen?

a)

Lead(II) iodide / Plumbum(II) iodida

b)

Silver / Argentum

c)

Phosphorus trichloride / Fosforus triklorida

d)

Sodium chloride / Natrium klorida

33.

The electron arrangement of atom M is 2.8.1 whereas the electron arrangement of atom N is 2.6. Atom M forms a compound with atom N. Choose the correct statement regarding this reaction.

a)

Atom N donates six electrons

b)

Atom M donates one electron

c)

A covalent compound is formed

d)

The chemical formula of the compound formed is MN

34.

The electron arrangement of atom B is 2.8.6 and atom C has four valence electron. What is the formula of the compound formed between B and C?

Susunan elektron bagi atom B adalah 2.8.6 dan atom C mempunyai empat elektron valens. Apakah formula sebatian yang terbentuk antara B dan C?

a)

B2C

b)

BC2

c)

CB4

d)

C3B2

35.

Element X has electron arrangement 2.5 and element Y has electron arrangement 2.8.8.1. Write the formula of the compounds that formed between the elements.

Unsur X mempunyai susunan elektron 2.5 dan elemen Y mempunyai susunan elektron 2.8.8.1. Tuliskan formula bagi sebatian yang terbentuk antara unsur-unsur berikut.

a)

X3Y

b)

Y3X

c)

XY

d)

Y6X

36.

In the formation of a dative bond,

a)

the shared electron pair originates from either one atom only.

b)

the shared electron originates from both atoms that are involved.

c)

electrons are transferred from one atom to another.

d)

electrons form a sea of electrons.

37.

How can dative bond form between ammonia, NH3 and hydrogen ion, H+ to form ammonium ion, NH4+?

a)

Ammonia, NH3 and hydrogen ion, H+ will each share one electron

b)

The pair of electrons not involved in covalent bond in ammonia, NH3 will be shared with hydrogen ion, H+

c)

Ammonia, NH3 and hydrogen ion, H+ will each share one electron

38.

Why do metals conduct electricity?

a)

They are shiny

b)

The electrons are delocalised and able to move

c)

The electrons are held tightly within the lattice

d)

The electrons are shared between two metal ions

39.

What is the bond that is found between ammonia molecules?

a)

Covalent bond

b)

Hydrogen bond

c)

Metal bond

d)

Ionic bond

40.

Why can compounds that can form hydrogen bonds have higher boiling points than compounds that cannot form hydrogen bonds?

a)

Compounds that can form hydrogen bonds need to overcome weak Van der Waals attraction forces

b)

Compounds that can form hydrogen bonds need to overcome strong hydrogen bonds

c)

Compounds that can form hydrogen bonds need to overcome weak Van der Waals attraction forces and strong hydrogen bonds

41.

Which chemical formula is correctly named?

Formula kimia yang manakah dinamakan dengan betul ?

a)

A

b)

B

c)

C

d)

D

42.

Diagram shows the apparatus set-up to determine the empirical formula for an oxide of copper. Gas Z is used to reduce the oxide of copper. What is gas Z?

Rajah menunjukkan susunan radas untuk menentukan formula empirik bagi satu oksida kuprum. Gas Z digunakan untuk menurunkan oksida kuprum itu. Apakah gas Z?

a)

Oxygen / Oksigen

b)

Chlorine / Klorin

c)

Hydrogen / Hidrogen

d)

Carbon dioxide / Karban dioksida

43.

Which compound has the correct chemical formula?

Sebatian manakah mempunyai formula kimia yang betul?

a)

A

b)

B

c)

C

d)

D

44.

What is the empirical formula for the compound?

Apakah formula empirik bagi sebatian itu?

a)

CH2O

b)

C2H2O2

c)

CH2O2

d)

C2H5O2

45.

Which substance has the same number of atoms as 12 g of carbon-12?

Bahan manakah yang mempunyai bilangan atom yang sama dengan 12 g carbon-12?

a)

1 mole of sodium chloride, NaCl

1 mol natrium klorida, NaCl

b)

1 mole of ethanol, C2H5OH

1 mol etanol, C2H5OH

c)

1 mole of chlorine gas, Cl2

1 mol gas klorin, Cl2

d)

1 mole of neon, Ne

1 mol neon, Ne

46.

Which of the following equation represents the reaction between elements X and Y?

Antara persamaan berikut, yang manakah mewakili tindak balas antara unsur X dengan unsur Y?

a)
b)
c)
d)
47.

In the experiment, excess chlorine gas is flown into the combustion tube. A brown solid is produced. What is the mass of the brown solid produced? [Relative atomic mass: Cl = 35.5, Fe = 56]

Dalam eksperimen ini,gas klorin berlebihan dialirkan ke dalam tiub pembakaran. Pepejal perang terbentuk. Apakah jisim pepejal perang yang terbentuk?

a)

6.09 g

b)

6.86 g

c)

9.53 g

d)

12.19 g

48.

The flow of dry hydrogen gas must be continued during the cooling process. What is the reason for this action?

Aliran gas hidrogen kering mesti dialirkan semasa proses penyejukan. Apakah sebab tindakan ini diambil?

a)

To remove the air from the combustion tube

Untuk menyingkirkan udara daripada tiub pembakaran

b)

To avoid the oxidation of lead to lead(II) oxide

Untuk mengelakkan pengoksidaan plumbum kepada plumbum(II) oksida

c)

To ensure the complete conversion of lead to lead(II) oxide

Untuk memastikan pertukaran lengkap plumbum kepada plumbum(II) oksida

d)

To increase the mass of lead formed in the combustion tube

Untuk meningkatkan jisim plumbum yang terbentuk dalam tiub pembakaran

49.

Which of the following statement is correct?

Antara pernyataan berikut, yang manakah betul?

a)

Carbon dioxide and oxygen exist as a gas while water and glucose exist as a liquid

Karbon dioksida dan oksigen wujud sebagai gas sementara air dan glukosa adalah cecair

b)

6 moles of carbon dioxide react with 6 moles of water to form 1 mole of glucose and 6 moles of oxygen molecules

6 mol karbon dioksida bertindak balas dengan 6 mol air membentuk I mol glukosa dan 6 mol molekul oksigen

c)

Carbon dioxide and water are products while glucose and oxygen are reactants

Karbon dioksida dan air ialah hasil tindak balas manakala glukosa dan oksigen ialah bahan tindak balas

d)

6 moles of carbon dioxide react with 6 moles of water to form 1 mole of glucose and 6 moles of oxygen atoms

6 mol karbon dioksida bertindak balas dengan 6 mol air membentuk I mol glukosa dan 6 mol atom oksigen

50.

A sample of carbon dioxide has a mass of 88 g. The relative molecular mass of the gas is 44. Which statements are correct about the sample of carbon dioxide?

Suatu sampel karbon dioksida mempunyai jisim 88 g. Jisim

molekul relatif bagi bagi gas ialah 44. Antara pernyataan berikut, yang manakah benar mengenai sampel karbon dioksida tersebut?

a)

It contains 2 moles of carbon dioxide molecules

Mengandungi 2 mol molekul karbon dioksida

b)

It contains 2 moles of carbon atoms

Mengandungi 2 mol atom karbon

c)

It contains 2 moles of oxygen atoms

Mengandungi 2 mol atom oksigen

d)

It contains 2 x 6 x 1023 carbon dioxide molecules

Mengandungi 2 x 6 x 1023 molekul karbon dioksida

51.
a)

XCO3

b)

X2CO3

c)

X(CO3)2

d)

X2(CO3)3

52.

The excess gas that comes out at the end of the combustion tube are collected and tested with burning wooden splinter. This test is repeated until there is no 'pop' sound produced. What is the reason for this action to be taken?

Lebihan gas yang keluar dari hujung tabung pembakaran dikumpulkan dan diuji dengan menggunakan kayu uji bernyala. Ujian ini dilakukan berulang kali sehingga tiada bunyi 'pop' terhasil. Apakah tujuan tindakan ini diambil?

a)

To ensure all the copper(II) oxide has changed into copper

Untuk memastikan semua kuprum(II) oksida telah bertukar kepada kuprum

b)

To prevent copper from reacting with air to form copper(II) oxide

Untuk mengelakkan kuprum daripada bertindak balas dengan udara bagi inembentuk kuprum(II) oksida

c)

To ensure all air has been removed so that explosion can be prevented

Untuk memastikan semua udara dikelua'rkan supaya letupan dapat dielakkan

d)

To prevent the water from flowing towards the hot porcelain dish and cracks the combustion tube

Untuk mengelakkan air daripada mengalir ke arah piring porselin yang panas dan meretakkan tiub pembakaran

53.

Which pair of quantity will be the same for one mole of carbon dioxide, CO2 and one mole of ammonia, NH3 at room temperature and pressure?

Pasangan kuantiti manakah yang sama bagi satu mol karbon dioksida; CO2 dan satu mol ammonia, NH3 pada suhu dan tekanan bilik?

a)

Mass and volume

Jisim dan isi padu

b)

Mass and number of atoms

Jisim dan- bilanganatom

c)

Volume and number of molecules

Isi padu dan bilangan molekul

d)

Number of molecules and number of atoms

Bilangan molekul dan bilangan atom

54.
a)

3.01 X 1023

b)

6.02 X 1023

c)

1.505 X 1023

d)

4.515 X 1023

55.

Diagram shows the percentage composition of a dye. What is the molecular formula of the dye? [Relative atomic mass: C = 12, H = 1, N = 14, Molar mass of the dye= 237 g mol-1]

Rajah menunjukkan peratus komposisi bagi sesuatu pewarna. Apakah formula molekul bagi pewarna itu?

a)

CHN5

b)

C5H5N

c)

C3H3N15

d)

C15H15N3

56.

Complete combustion of propanol produces carbon dioxide and water. What is the minimum oxygen gas required for complete combustion of 15.0 g of propanol at room condition. [Relative atomic mass: H = 1, C = 12, 0 = 16; Molar volume of gas at room condition = 24 dm3 mol-1]

Pembakaran lengkap propanol menghasilkan karbon dioksida dan air. Berapakah isi padu minimum gas oksigen yang diperlukan untuk pembakaran lengkap 15.0 g propanol pada keadaan bilik.

a)

6.0 dm3

b)

27.0 dm3

c)

29.2 dm3

d)

3 0.0 dm3

57.

What is the volume of nitrogen dioxide gas released when 18.8 g of copper(II) nitrate is heated at room condition? [Relative atomic mass: Cu= 64, 0 = 16, N = 14; Molar volume of gas at room temperature and pressure= 24 dm3 mol-1]

Berapakah isi padu gas nitrogen dioksida yang dibebaskan apabila 18.8 g kuprum(II) nitrat dipanaskan pada keadaan bilik?

a)

1.2 dm3

b)

2.4 dm3

c)

4.8 dm3

d)

9.6 dm3

58.
a)

100% Agree

b)

0% Agree

59.

A patient is diagnosed of having cancer. Which isotope is used to treat the patient?

a)

Phosphorus-32

b)

Carbon-14

c)

Sodium-24

d)

Cobalt-60

60.

Why carbon-12 is chosen as the standard atom to determine the relative atomic mass and relative molecular mass?

a)

Carbon has three isotopes

b)

Carbon is a non-metal element

c)

Carbon is solid at room temperature and can be handled easily

61.

Which characteristic is correct about elements in Group 17 in the Periodic Table as going down the group?

a)

The intensity of colour decreases

b)

The tendency to accept an electron decreases

c)

The physical state changes from liquid to gas

d)

Force of attraction between nucleus and electron become stronger

62.

Which of the following element forms brown coloured compound and functions as a catalyst in industry?

a)

Iron

b)

Carbon

c)

Sodium

d)

Bromine

63.

Diagram 1 shows the ionisation equation for ammonia.

NH3 + H2O ⇌ NH4+ + OH-

Which of the following particle shows that ammonia is an alkali?

a)

NH3

b)

H2O

c)

NH4+

d)

OH-

64.

Which salts is prepared in a laboratory by a titration method?

a)

Magnesium nitrate

b)

Lead(II) chloride

c)

Sodium sulphate

d)

Copper(II) nitrate

65.

Sodium chloride is an ionic compound. Which of the following is correct about sodium chloride?

a)

Dissolves in organic solvent

b)

Has high boiling point

c)

Cannot conduct electricity

d)

Has high volatility

66.

The following are the characteristics of substance needed to produce a new product in industry:

✅Function under the extremely low temperature

✅Transfer information with high speed

a)

Ceramic

b)

Superconductor

c)

Fibre optic

d)

Fibre glass

67.

Diagram 2 shows the apparatus set-up for an experiment to electroplate an iron ring with silver. What are P, Q and R?

a)

P: Ring

Q: Silver

R: Silver nitrate

b)

P: Ring

Q: Silver

R: Iron (II) nitrate

c)

P: Silver

Q: Ring

R: Silver (II) nitrate

d)

P: Silver

Q: Ring

R: Iron (II) nitrate

68.

Synthetic rubber is more resistant to abrasion than natural rubber. Its grease and oil resistance also makes it a popular choice for corrosive environment. A manufacturer needs to produce sealants which are very resistant against chemical solvents and oils.

Which is the most suitable synthetic rubber to produce sealants?

a)

Thiokol

b)

Neoprene

c)

Silicone rubber

d)

Styrene-butadiene rubber

69.

Choose a correct answer.

a)

A

b)

B

c)

C

d)

D

70.

Choose a correct answer.

a)

b)

c)

d)

71.

Choose a correct answer.

a)

27

b)

54

c)

118

d)

123

72.

Choose a correct answer.

a)

b)

c)

d)

73.

Choose a correct answer.

a)

b)

c)

d)

74.

Choose a correct answer.

a)

b)

c)

d)

75.

Choose a correct answer.

a)

b)

c)

d)

76.

Choose a correct answer.

a)

b)

c)

d)

77.

Choose a correct answer.

a)

b)

c)

d)

78.

Choose a correct answer.

a)

b)

c)

d)

79.

Choose a correct answer.

a)

b)

c)

d)

80.

Choose a correct answer.

a)

b)

c)

d)

81.

Choose a correct answer.

a)

b)

c)

d)

82.

Choose a correct answer.

a)

b)

c)

d)

83.

Choose a correct answer.

a)

b)

c)

d)

84.

Choose a correct answer.

a)

b)

c)

d)

85.

Choose a correct answer.

a)

b)

c)

d)

86.

Choose a correct answer.

a)

b)

c)

d)

87.

Choose a correct answer.

a)

b)

c)

d)

88.

Choose a correct answer.

a)

b)

c)

d)

89.

Choose a correct answer.

a)

b)

c)

d)

90.

Choose a correct answer.

a)

b)

c)

d)

91.

Choose a correct answer.

a)

b)

c)

d)

92.

Choose a correct answer.

a)

b)

c)

d)

93.

Choose a correct answer.

a)

b)

c)

d)

94.

Choose a correct answer.

a)

b)

c)

d)

95.

Choose a correct answer.

a)

b)

c)

d)

96.

Choose a correct answer.

a)

b)

c)

d)

97.

Choose a correct answer.

a)

b)

c)

d)

98.

Choose a correct answer.

a)

b)

c)

d)

99.

Choose a correct answer.

a)

b)

c)

d)

100.

Choose a correct answer.

a)

b)

c)

d)

101.

Choose a correct answer.

a)

b)

c)

d)

102.

Choose a correct answer.

a)

b)

c)

d)

103.

Choose a correct answer.

a)

b)

c)

d)

104.

Choose a correct answer.

a)

b)

c)

d)

105.

Choose a correct answer.

a)

b)

c)

d)

106.

Choose a correct answer.

a)

b)

c)

d)

107.

Choose a correct answer.

a)

b)

c)

d)

108.

Choose a correct answer.

a)

b)

c)

d)

109.

If 0.25 mole of a compound releases 150 kJ of heat. What is the heat of this reaction?

a)

37.5 kJ

b)

1.7 x 10-3 kJ

c)

600 kJ

d)

150 kJ

110.

Which is the first step in calculating the heat of a reaction?

a)

Calculate the heat change in the reaction: Q = mcθ θ = change in temperature

b)

Calculate the heat change for 1 mole of reactant or 1 mole of product formed in proportion

c)

Determine the number of moles of the reactants and products formed, n mole

d)

State the heat of reaction, ∆H with +/- signs and the correct units: ∆H = +/-X kJ mol−1

111.

Which is the second step in calculating the heat of a reaction?

a)

Calculate the heat change in the reaction: Q = mcθ θ = change in temperature

b)

Calculate the heat change for 1 mole of reactant or 1 mole of product formed in proportion

c)

Determine the number of moles of the reactants and products formed, n mole

d)

State the heat of reaction, ∆H with +/- signs and the correct units: ∆H = +/-X kJ mol−1

112.

Which is the third step in calculating the heat of a reaction?

a)

Calculate the heat change in the reaction: Q = mcθ θ = change in temperature

b)

Calculate the heat change for 1 mole of reactant or 1 mole of product formed in proportion

c)

Determine the number of moles of the reactants and products formed, n mole

d)

State the heat of reaction, ∆H with +/- signs and the correct units: ∆H = +/-X kJ mol−1

113.

Step 1: Number of moles, n represents: Mole of (a)   formed for heat of precipitation.

114.

Step 1: Number of moles, n represents: Mole of (a)   for heat of displacement.

115.

Step 1: Number of moles, n represents: Mole of (a)   formed for heat of neutralisation.

116.

Step 1: Number of moles, n represents: Mole of (a)   burnt for heat of combustion.

117.

An experiment is carried out to determine the heat of precipitation of barium sulphate. In this reaction, 25cm3 of 1.0mol dm-3 barium chloride, is poured into a polystyrene cup and the initial temperature of solution is recorded. 25cm3 of 1.0mol dm-3 of sodium sulphate solution is poured into the same polystyrene cup. The resulting solution mixture is stirred and the highest temperature is recorded. The recorded temperatures are shown below.

Initial temperature = 29°C

Highest temperature reached by the solution = 34°C

Calculate the heat of precipitation of barium sulfate.

4 lines
118.

Solid silver bromide is formed when silver ions combine with bromide ions, as shown by the following thermochemical equation:

Ag+(aq) + Br−(aq) → AgBr(s), ∆H = -50kJ mol-1

In an experiment, 50cm3 of 0.5mol dm-3 silver nitrate solution is added to 100cm3 of 2.0mol dm-3 sodium bromide. Calculate the change in temperature that occurs in this reaction.

4 lines
119.

50cm3 of 1.0mol dm-3 copper (II) chloride, is poured into a polystyrene cup and the initial temperature of the solution is recorded. 4g of zinc powder (in excess) is added to the copper (II) chloride. The mixture is stirred slowly, and the highest temperature recorded. The experimental results are as follows:

The initial temperature = 28°C

The highest temperature of mixture = 69°C

[Specific heat capacity = 4.2Jg-1 °C-1, density of a solution of 1g cm-3]. Calculate the heat of displacement of copper by zinc metal salt solution.

4 lines
120.

When 50cm3 of 0.5mol dm-3 NaOH is added to 50cm3 of 0.5mol dm-3 HCl acid in a plastic bottle, the temperature rise by 3.27°C. Find the heat of neutralisation for the reaction in kJ mol-1.

[Specific heat capacity = 4.2Jg-1 °C-1, density of a solution of 1g cm-3]

4 lines
121.

2.30g ethanol is burned completely in excess oxygen and the heat released can raise the temperature of 800cm3 of water by 20°C. Calculate the heat of combustion of ethanol.

[Specific heat capacity = 4.2Jg-1 °C-1, density of a solution of 1g cm-3, Atomic relative mass: H,1; C, 12; O,16]

4 lines
122.

1) Organic compounds are derived compounds from living things and contains the element carbon which are covalently bonded .

Sebatian organik ialah sebatian terbitan daripada benda hidup dan mengandungi unsur karbon yang terikat secara kovalen.

a)

True / Benar

b)

False / Salah

123.

2) The following are examples of non-hydrocarbon organic compounds except . . .
Berikut adalah contoh sebatian organik bukan hidrokarbon kecuali . . .

a)

Starch / Kanji

b)

Natural Gas / Gas asli

c)

Gasoline / Petrol

d)

Protein / Protein

124.

3) Diagram show Three structures formula of unsaturated hydrocarbon . Is the statement right ?

Rajah menunjukkan Tiga formula struktur hidrokarbon tak tepu. Adakah kenyataan itu benar?

a)

True / Benar

b)

False / Salah

125.

4) Name homologous series for this functional group .

Namakan siri homolog untuk kumpulan berfungsi ini .

(a)  

126.

5) X is the molecule that has same molecular formula but different stuctural molecule. What is X ?

X ialah molekul yang mempunyai formula molekul yang sama tetapi formula struktur yang berbeza. Apakah X?

(a)  

127.

6)Which of the following is not addition reaction of Alkene ?

Antara berikut yang manakah bukan tindak balas penambahan Alkena ?

a)

Addition of hydrogen / Penambahan Hidrogen

b)

Polimerization / Pempolimeran

c)

Oxidation of acidified potassium manganate (VII) solution / Pengoksidaan menggunakan larutan Kalium Manganat (VII) berasid

d)

Addition of water / Penambahan air

128.

7) Which of the following is condition undergoes by Ethene, C2H4 during its polymerization addition reaction ?

Antara berikut, yang manakah keadaan yang dialami oleh Etena, C2H4 semasa tindak balas penambahan pempolimeran?

a)

200°C , 1200 atm / 200°C , 1200 atm

b)

600°C , 1200 atm / 600°C , 1200 atm

c)

120°C, 1200 atm / 120°C, 1200 atm

d)

200°C , 600 atm / 200°C , 600 atm

129.

8) Glucose undergoes fermentation and produce the following product except . . .

Glukosa mengalami penapaian dan menghasilkan produk berikut kecuali . .

a)

Ethanol,C2O5H / Etanol,C2O5H

b)

Carbon dioxide ,CO2 / Karbon dioksida ,CO2

c)

Oxygen ,O2

Oksigen ,O2

d)

Water ,H2O / Air ,H2O

130.

9) Which one is functional group for Ester ?

Yang manakah kumpulan berfungsi untuk Ester ?

a)

b)

c)

d)

131.

10) The following are the characteristics of the homologous series :

Berikut ialah ciri-ciri siri homolog :

⋅ Same physical properties

Sifat fizikal yang sama

⋅ Different chemical properties

Sifat kimia yang berbeza

⋅ Different in functional group

Kumpulan berfungsi yang berbeza

Determine whether this statement is true or false.

Tentukan sama ada pernyataan ini benar atau palsu.

a)

True / Benar

b)

False / Salah

132.

11) You are given two test tubes ,one contain Hexene while another one contain Hexane.How would you use chemical test to differentiate between Hexene and Hexane since both solution show same condition and colourless before any reaction occur ?

Anda diberi dua tabung uji, satu mengandungi Heksena manakala satu lagi mengandungi Heksana. Bagaimanakah anda menggunakan ujian kimia untuk membezakan antara Heksena dan Heksana memandangkan kedua-dua larutan menunjukkan keadaan yang sama dan tidak berwarna sebelum sebarang tindak balas berlaku ?

(a)  

133.

12) Using your knowledge about IUPAC Nomenclature , what is the name of the compound above ?

Dengan menggunakan pengetahuan anda tentang Penamaan IUPAC, apakah nama bagi kompaun di atas?

a)

3-hexyl met-2-ene / 3-heksil met-2-ena

b)

2-methyl hex-3-ene /

2-metil heks-3-ena

c)

3-methyl hex-2-ene /

3-metil heks-2-ena

d)

2-hexyl met-3-ene /

2-heksil met-3-ena

134.

13) Ester were commonly use in order to make perfume in cosmetic industry . What are the characteristics of ester that make it isuitable for this situation?

Ester biasanya digunakan untuk membuat minyak wangi dalam industri kosmetik. Apakah ciri-ciri ester yang menjadikannya sesuai untuk keadaan ini?

a)

Chemically reactive / Reaktif secara kimia

b)

Natural compound with fruity and sweet smell / Sebatian neutral dengan bau manis buah-buahan

c)

Easily vaporise at room temperature / Meruap dengan mudah pada suhu bilik

d)

Not dissolved in water/

Tidak larut dalam air

135.

14) Which of the answers is true about comparison between Alkane and Alkene ?

Antara jawapan yang manakah benar tentang perbandingan antara Alkana dan Alkena ?

a)

Alkane has single covalent bond while Alkene have double covalent bond / Alkana mempunyai ikatan kovalen tunggal manakala Alkena mempunyai ikatan kovalen ganda dua

b)

Both are saturated hydrocarbon / Kedua-ada ialah hidrokarbon tepu

c)

Alkane has lower boiling point than Alkene / Alkana mempunyai takat didih lebih rendah berbanding Alkena

d)

Both have same physical properties / Kedua-dua mempunyai sifat fizikal yang sama

136.

15) Bromine water test is used in determination of Alkane and Alkene .Based on the figure above ,when bromine water is dropped into test tube that contain propene the brown colour of bromine water will ...

Ujian air bromin digunakan dalam penentuan Alkana dan Alkena .Berdasarkan rajah di atas, apabila air bromin dititiskan ke dalam tabung uji yang mengandungi propena warna perang air bromin akan ...



(a)  

137.

16) When comparing physical properties between Alkanes and Alkenes we find that alkenes is more reactive compare to alkane due to presence of ___ between the carbon atom.

Apabila membandingkan sifat fizik antara Alkana dan Alkena kita dapati bahawa alkena lebih reaktif berbanding dengan alkana kerana kehadiran ___ antara atom karbon.

(a)  

138.

17) What are reactant A and B that produce an ester and water when they react?

Apakah bahan tindak balas A dan B yang menghasilkan ester dan air apabila bertindak balas?

a)

A) Alcohol

B) Carboxylic acid

A)Alkohol

B)Asid Karboksilik

b)

A) Carbon dioxide, CO2

B) Alcohol

A) Karbon dioksida,CO2

B)Alkohol

c)

A) Carboxylic acid

B) Carbon dioxide, CO2

A) Asid Karboksilik

B) Karbon dioksida,CO2

d)

A)Alcohol

B)Oxygen, O2

A)Alkohol

B)Oksigen, O2

139.

18) Give the name and molecular formula of the product X

from above reaction .

Berikan nama dan formula molekul bagi hasil X daripada tindak balas di atas.

a)

C4H9COOC3H7, Propyl pentanoate

C4H9COOC3H7, Propil pentanoat

b)

C2H5COOC5H11, Pentyl propanoate

C2H5COOC5H11, Pentil propanoat

c)

C8H16O2, Propil pentanoate

C8H16O2, Propyl pentanoat

d)

C8H16O2, Pentyl propanoate

C8H16O2, Pentil propanoat

140.

19) Choose the right Isomers for molecule structure shown above.

Pilih Isomer yang betul untuk struktur molekul yang ditunjukkan di atas.

a)

A

b)

B

c)

C

d)

D

141.

20) Choose possible isomers for type of alcohol structure above.

Pilih isomer yang mungkin untuk jenis struktur alkohol di atas.

a)

b)

c)

d)

142.

1) Organic compounds are derived compounds from living things and contains the element carbon which are covalently bonded .

Sebatian organik ialah sebatian terbitan daripada benda hidup dan mengandungi unsur karbon yang terikat secara kovalen.

a)

True / Benar

b)

False / Salah

143.

2) The following are examples of non-hydrocarbon organic compounds except . . .
Berikut adalah contoh sebatian organik bukan hidrokarbon kecuali . . .

a)

Starch / Kanji

b)

Natural Gas / Gas asli

c)

Gasoline / Petrol

d)

Protein / Protein

144.

3) Diagram show Three structures formula of unsaturated hydrocarbon . Is the statement right ?

Rajah menunjukkan Tiga formula struktur hidrokarbon tak tepu. Adakah kenyataan itu benar?

a)

True / Benar

b)

False / Salah

145.

4) Name homologous series for this functional group .

Namakan siri homolog untuk kumpulan berfungsi ini .

(a)  

146.

5) X is the molecule that has same molecular formula but different stuctural molecule. What is X ?

X ialah molekul yang mempunyai formula molekul yang sama tetapi formula struktur yang berbeza. Apakah X?

(a)  

147.

6)Which of the following is not addition reaction of Alkene ?

Antara berikut yang manakah bukan tindak balas penambahan Alkena ?

a)

Addition of hydrogen / Penambahan Hidrogen

b)

Polimerization / Pempolimeran

c)

Oxidation of acidified potassium manganate (VII) solution / Pengoksidaan menggunakan larutan Kalium Manganat (VII) berasid

d)

Addition of water / Penambahan air

148.

7) Which of the following is condition undergoes by Ethene, C2H4 during its polymerization addition reaction ?

Antara berikut, yang manakah keadaan yang dialami oleh Etena, C2H4 semasa tindak balas penambahan pempolimeran?

a)

200°C , 1200 atm / 200°C , 1200 atm

b)

600°C , 1200 atm / 600°C , 1200 atm

c)

120°C, 1200 atm / 120°C, 1200 atm

d)

200°C , 600 atm / 200°C , 600 atm

149.

8) Glucose undergoes fermentation and produce the following product except . . .

Glukosa mengalami penapaian dan menghasilkan produk berikut kecuali . .

a)

Ethanol,C2O5H / Etanol,C2O5H

b)

Carbon dioxide ,CO2 / Karbon dioksida ,CO2

c)

Oxygen ,O2

Oksigen ,O2

d)

Water ,H2O / Air ,H2O

150.

9) Which one is functional group for Ester ?

Yang manakah kumpulan berfungsi untuk Ester ?

a)

b)

c)

d)

151.

10) The following are the characteristics of the homologous series :

Berikut ialah ciri-ciri siri homolog :

⋅ Same physical properties

Sifat fizikal yang sama

⋅ Different chemical properties

Sifat kimia yang berbeza

⋅ Different in functional group

Kumpulan berfungsi yang berbeza

Determine whether this statement is true or false.

Tentukan sama ada pernyataan ini benar atau palsu.

a)

True / Benar

b)

False / Salah

152.

11) You are given two test tubes ,one contain Hexene while another one contain Hexane.How would you use chemical test to differentiate between Hexene and Hexane since both solution show same condition and colourless before any reaction occur ?

Anda diberi dua tabung uji, satu mengandungi Heksena manakala satu lagi mengandungi Heksana. Bagaimanakah anda menggunakan ujian kimia untuk membezakan antara Heksena dan Heksana memandangkan kedua-dua larutan menunjukkan keadaan yang sama dan tidak berwarna sebelum sebarang tindak balas berlaku ?

(a)  

153.

12) Using your knowledge about IUPAC Nomenclature , what is the name of the compound above ?

Dengan menggunakan pengetahuan anda tentang Penamaan IUPAC, apakah nama bagi kompaun di atas?

a)

3-hexyl met-2-ene / 3-heksil met-2-ena

b)

2-methyl hex-3-ene /

2-metil heks-3-ena

c)

3-methyl hex-2-ene /

3-metil heks-2-ena

d)

2-hexyl met-3-ene /

2-heksil met-3-ena

154.

13) Ester were commonly use in order to make perfume in cosmetic industry . What are the characteristics of ester that make it isuitable for this situation?

Ester biasanya digunakan untuk membuat minyak wangi dalam industri kosmetik. Apakah ciri-ciri ester yang menjadikannya sesuai untuk keadaan ini?

a)

Chemically reactive / Reaktif secara kimia

b)

Natural compound with fruity and sweet smell / Sebatian neutral dengan bau manis buah-buahan

c)

Easily vaporise at room temperature / Meruap dengan mudah pada suhu bilik

d)

Not dissolved in water/

Tidak larut dalam air

155.

14) Which of the answers is true about comparison between Alkane and Alkene ?

Antara jawapan yang manakah benar tentang perbandingan antara Alkana dan Alkena ?

a)

Alkane has single covalent bond while Alkene have double covalent bond / Alkana mempunyai ikatan kovalen tunggal manakala Alkena mempunyai ikatan kovalen ganda dua

b)

Both are saturated hydrocarbon / Kedua-ada ialah hidrokarbon tepu

c)

Alkane has lower boiling point than Alkene / Alkana mempunyai takat didih lebih rendah berbanding Alkena

d)

Both have same physical properties / Kedua-dua mempunyai sifat fizikal yang sama

156.

15) Bromine water test is used in determination of Alkane and Alkene .Based on the figure above ,when bromine water is dropped into test tube that contain propene the brown colour of bromine water will ...

Ujian air bromin digunakan dalam penentuan Alkana dan Alkena .Berdasarkan rajah di atas, apabila air bromin dititiskan ke dalam tabung uji yang mengandungi propena warna perang air bromin akan ...



(a)  

157.

16) When comparing physical properties between Alkanes and Alkenes we find that alkenes is more reactive compare to alkane due to presence of ___ between the carbon atom.

Apabila membandingkan sifat fizik antara Alkana dan Alkena kita dapati bahawa alkena lebih reaktif berbanding dengan alkana kerana kehadiran ___ antara atom karbon.

(a)  

158.

17) What are reactant A and B that produce an ester and water when they react?

Apakah bahan tindak balas A dan B yang menghasilkan ester dan air apabila bertindak balas?

a)

A) Alcohol

B) Carboxylic acid

A)Alkohol

B)Asid Karboksilik

b)

A) Carbon dioxide, CO2

B) Alcohol

A) Karbon dioksida,CO2

B)Alkohol

c)

A) Carboxylic acid

B) Carbon dioxide, CO2

A) Asid Karboksilik

B) Karbon dioksida,CO2

d)

A)Alcohol

B)Oxygen, O2

A)Alkohol

B)Oksigen, O2

159.

18) Give the name and molecular formula of the product X

from above reaction .

Berikan nama dan formula molekul bagi hasil X daripada tindak balas di atas.

a)

C4H9COOC3H7, Propyl pentanoate

C4H9COOC3H7, Propil pentanoat

b)

C2H5COOC5H11, Pentyl propanoate

C2H5COOC5H11, Pentil propanoat

c)

C8H16O2, Propil pentanoate

C8H16O2, Propyl pentanoat

d)

C8H16O2, Pentyl propanoate

C8H16O2, Pentil propanoat

160.

19) Choose the right Isomers for molecule structure shown above.

Pilih Isomer yang betul untuk struktur molekul yang ditunjukkan di atas.

a)

A

b)

B

c)

C

d)

D

161.

20) Choose possible isomers for type of alcohol structure above.

Pilih isomer yang mungkin untuk jenis struktur alkohol di atas.

a)

b)

c)

d)

162.

A ______________ is a large molecule.

a)

Micromolecule

b)

Polymer

c)

Amino Acid

d)

Macromolecule

163.

Which of the following elements are found in ALL macromolecules? (Select all 3 that apply).

a)
b)
c)
d)
164.

Which of the following is NOT one of the 4 major classes of macromolecules?

a)

Lipids

b)

Carbon

c)

Protein

d)

Carbohydrates

e)

Nucleic Acid

165.

Nucleic acids make up which of the 2 molecules listed below?

a)

FDA

b)

RNA

c)

DNA

d)

FDR

166.

What are the 4 main classes of Macromolecules?

a)

Carbohydrates, Glucose, Proteins & Nucleic Acids

b)

Carbohydrates, Lipids, Amino Acids & Nucleic Acids

c)

Carbohydrates, Lipids, Protein & Nucleic Acids

d)

Carbohydrates, Lipids, Protein & Nucleotides

167.

Which of these is NOT one of the trace elements required by your body for proper functioning of muscles and nerves?

a)

Calcium, Ca

b)

Sulfur, S

c)

Sodium, Na

d)

Potassium, K

168.

The ratio of C, H and O in monosaccharides is 2:1:2.

a)

TRUE

b)

FALSE

169.

The 4 main elements that make up 95% of the body are carbon, C; Hydrogen, H; Nitrogen, N; and Oxygen, O.

a)

TRUE

b)

FALSE

170.

Which of these is NOT a type of bond that carbon can form?

a)

single

b)

double

c)

triple

d)

quintuplet

e)

quadruple

171.

The subunits of carbohydrates are called _____.

a)

polypeptides

b)

monosaccharides

c)

disaccharides

d)

glucose

172.
Name this alkane
a)

Methane

b)

Ethane

c)

Propane

d)

Butane

173.

Classify the compound based on the functional group present.

(Pay attention to the classification of bonds.)

a)

alkane

b)

alkene

c)

alkyne

174.

Classify the compound based on the functional group present.

(Pay attention to the classification of bonds.)

a)

alkane

b)

alkene

c)

alkyne

d)

aromatic

175.

Chains of carbon atoms are called compounds.


a)

aliphatic

b)

cyclic

c)

organic

d)

saturated

176.

In which processes are macro molecules broken down into monomers?

a)

anabolism

b)

catabolism

177.

Organisms that make their own food using abiotic (nonliving) factors

a)

heterotrophs

b)

autotrophs

c)

consumers

178.

What does the "TP" in ATP stand for?

a)

2 phosphates

b)

Two proteins

c)

tri (3) phosphates

d)

tri (3) proteins

179.

What is the function of ATP in living things?

a)

provides energy for cells

b)

provides structure in the nucleus

c)

stores genetic information

180.

Protein digestion begins in the _____ and ends in the _____.

a)

small intestines; stomach

b)

large intestines; stomach

c)

mouth; small intestines

d)

mouth; large intestine

e)

stomach; small intestines

181.

What is the original source of energy for almost all of the energy needed by living systems? 

a)

sun

b)

moon

c)

plants

d)

meat

182.

Oxidation is the _________ of electrons.

a)

loss

b)

gain

c)

sharing

d)

transfer

183.

Oxidation is the _________ of electrons.

a)

loss

b)

gain

c)

sharing

d)

transfer

184.

Oxidation is the _________ of electrons.

a)

loss

b)

gain

c)

sharing

d)

transfer

185.

Reduction is the ___________ of electrons.

a)

loss

b)

gain

c)

sharing

d)

transfer

186.

Gaining hydrogen is an example of...

a)

oxidation

b)

reduction

187.

Gaining oxygen is an example of...

a)

oxidation

b)

reduction

188.

Which of the following represents oxidation?

a)

C → CH4

b)

Fe3+ → Fe2+

c)

Cl2 → 2Cl-

d)

Zn → ZnO

189.
Which of the following represents reduction?
a)
C →  CO
b)
N2 →  NH3
c)
Zn  →   Zn2+ 
d)
H2 →  H2O
190.
Which statement is true:
Mg → Mg2+ + 2e–
a)
Mg gains 2 electrons
b)
Mg2+ loses 2 electrons
c)
Mg loses 1 electron
d)
Mg loses 2 electrons
191.

Which element is oxidised in the reaction Zn + 2HCl  →\rightarrow   ZnCl2 + H2  \

a)

Zinc

b)

Hydrogen

c)

Chlorine

d)

None

192.

What is the oxidation number of nitrogen in N2?

a)

-3

b)

0

c)

+4

d)

-1

193.

The sum of the oxidation numbers in SCN- is equivalent to

a)

0

b)

-1

c)

+1

d)

+3

194.

What is the oxidation number of iodine in KIO3?

a)

0

b)

-1

c)

+5

d)

+1

195.

What is a redox reaction?

a)

A reaction where both reactants get reduced.

b)

A reaction where both reactants get oxidized.

c)

A reaction that involves a transfer of electrons between reactants.

d)

A reaction that involves the combustion of at least one reactant.

196.

What is a reducing agent?

a)

It is the species that gets reduced -- gains electrons.

b)

It is the species that gets oxidized -- loses electrons.

c)

It is the species that creates electrons.

d)

It is the species that destroys electrons.

197.

What is an oxidizing agent?

a)

It is the species that gets reduced -- gains electrons.

b)

It is the species that gets oxidized -- loses electrons.

c)

It is the species that creates electrons.

d)

It is the species that loses electrons.

198.

What is an anode?

a)

It is the electrode where oxidation takes place.

b)

It is the electrode where reduction takes place.

c)

It is an aqueous solution containing an electrode.

d)

It is the salt bridge that connects half-cells.

199.

What is a cathode?

a)

It is the electrode where oxidation takes place.

b)

It is the electrode where reduction takes place.

c)

It is an aqueous solution containing an electrode.

d)

It is the salt bridge that connects half-cells.

200.

Electrons always flow from

a)

cathode to anode

b)

anode to cathode

201.

Given their standard reduction potentials, which of the species is going to be oxidized?

Cu2+/Cu = 0.34V

Zn2+/Zn = -0.76V

a)

Cu

b)

Zn

c)

CuSO4

d)

ZnSO4

202.

Any substance that does not conduct electricity when in solution is called a(n) ―

a)

nonelectrolyte

b)

electrolyte

c)

conductor

d)

semiconductor

203.

The diagram shows what happens when zinc reacts with hydrochloric acid. Which of these best describes the energy transformation that occurs during this reaction?

a)

Thermal energy - kinetic energy

b)

Kinetic energy -potential energy

c)

Chemical energy - thermal energy

d)

Potential energy - chemical energy

204.

The potential energy diagram of a reaction is shown. Which statement below is correct relating to this reaction?

a)

#1 represents the enthalpy change for this exothermic reaction.

b)

#2 represents the enthalpy change for this endothermic reaction.

c)

#3 represents the enthalpy change for this endothermic reaction.

d)

#4 represents the enthalpy change for this exothermic reaction.

205.

During an exothermic reaction, heat content in the surroundings increases because

a)

heat energy is destroyed during reactions

b)

the reaction absorbs heat energy

c)

the energy contained in the reactants is lower then the products

d)

the energy contained in the products is lower than the reactants

206.

The diagram represents two solids and the temperature of each. What occurs when the two solids are placed in contact with each other?

a)

Heat energy flows from solid A to solid B. Solid A decreases in temperature

b)

Heat energy flows from solid A to solid B. Solid A increases in temperature

c)

Heat energy flows from solid B to solid A. Solid B decreases in temperature.

d)

Heat energy flows from solid B to solid A. Solid B increases in temperature.

207.

The amount of heat energy required to change the temperature of 12 g of gold from 45°C to 15°C is -47 J. What is the specific heat capacity of gold?

a)

0.13 J/(g°C)

b)

17,000 J/(g°C)

c)

1600 J/(g°C)

d)

0.065 J/(g°C)

208.

The graph represents the uniform heating of a substance, starting with the substance as a solid below its melting point. Which line segment listed below represents an increase in potential energy and no change in average kinetic energy?

a)

Line segment AB

b)

Line segment BC

c)

Line segment CD

d)

Line segment EF

209.

A cast iron skillet is used to fry bacon. For optimal frying, the pan must be heated to about 178 oC from a room temperature of 22.0 oC. It is known that 1.58 x 105 J of heat energy are absorbed by the pan to reach the desired temperature and the specific heat of iron is 0.450 J/g oC. What must the mass of the skillet be?

a)

12.7 kg

b)

2.25 kg

c)

110 kg

d)

1.97 kg

210.

Experimental Set-up for Calories in a Chocolate Chip Cookie Students designed an experiment to determine the amount of calories in a chocolate chip cookie. A ring stand was used with a clean aluminum soda can hung from the ring that was partially filled with a known mass of water. A thermometer was placed inside the can so that it measured the temperature of the water but did not touch any part of the metal can. Once set-up was complete, an initial water temperature was taken. The cookie was then lit on fire and allowed to completely burn. A final temperature of the water was measured.

Refer to the experimental set-up for calories in a chocolate chip cookie. How does this experiment allow students to measure the calories in a cookie?

a)

The difference in masses before and after the cookie is burned is calculated, then converted into heat energy.

b)

Heat energy from the burning cookie is transferred to the water. The change in water temperature is used to calculate the heat energy from the cookie.

c)

Data from the amount of time for the cookie to burn and the temperature change are used to calculate the heat energy from the cookie.

d)

The cookie is burned until the water reaches a boiling temperature, then masses are compared to calculate the heat energy from the cookie.

211.

When methane, CH4, and oxygen, O2, are mixed in a stove and ignited, a lovely blue flame results. The balanced equation is: CH4(g) + 2O2(g) 2H2O(g) + CO2(g) What can be said about the energy involved in this chemical reaction?


I. The average kinetic energy of the products is greater than that of the reactants.

II. The chemical energy stored in the reactants is greater than the chemical energy stored in the products.

III. Chemical energy in the reactants is changed into heat energy and light energy.

a)

I only

b)

II only

c)

III only

d)

I, II, and III

212.

The nucleus of an atom contains which subatomic particles?

a)

protons and electrons

b)

protons and neutrons

c)

electrons and neutrons

d)

protons, electrons, and neutrons

213.

Typically in an atom, which two subatomic particles are equal in number?

a)

protons and neutrons

b)

all subatomic particles are equal in number

c)

neutrons and electrons

d)

protons and electrons

214.

Which subatomic particle is counted to determine the type of element the atom represents?

a)

proton

b)

neutron

c)

electron

d)

boron

215.

How many neutron are in the atom "K"?

a)

29

b)

19

c)

58

d)

20

216.
Adding or subtracting neutrons (charge = 0, mass = 1) makes the element change into an...
a)
ion
b)
mixture
c)
isotope
d)
neutral atom
217.
What charge does a potassium (K) ion have?
a)
+1
b)
-1
c)
+2 
d)
-2
218.
What charge does a bromine (Br) ion have?
a)
-1
b)
-2
c)
-3
d)
-4
219.

Periodic law states that the elements are arranged according to their atomic ________ so that elements with similar chemical properties are in the same ________ and properties repeat periodically.

a)

numbers, rows

b)

masses, rows

c)

masses, column

d)

numbers, column

220.

Which element is found in group 2, period 6?

a)

Oxygen (O)

b)

Barium (Ba)

c)

Selenium (Se)

d)

Carbon (C)

221.

Which halogen is found in period 4?

a)

Krypton (Kr)

b)

Xenon (Xe)

c)

Bromine (Br)

d)

Iodine (I)

222.

Elements that have the same number of energy levels (electron shells) are said to be in the same ______.

a)

group

b)

period

c)

family

d)

classification

223.

What is the formula to solve for the number of neutrons?

a)

Mass + Atomic Number= Neutrons

b)

Mass x Atomic Number = Neutrons

c)

Mass - Atomic Number = Neutrons

d)

Mass + Number of Protons = Neutrons

224.

an atom or group of atoms that has gained or lost one or more electrons and is now either positively or negatively charged

a)

isotope

b)

ion

c)

orbital

d)

nucleus

225.

Frank has a paper clip. It has a mass of 9g and a volume of 3cm3. What is its density?

a)

3 g/cm3

b)

0.33 g/cm3

c)

27 g/cm3

d)

39 g/cm3

226.
Helium balloons rise on earth because
a)
helium is less dense than air
b)
helium is more dense than air
c)
helium is cooler than air
d)
helium is warmer than air
227.

A mechanical pencil has the density of 3.0 g/mL. The volume of the pencil is 15.8 mL. What is the mass of the pencil?

a)

47.4 g

b)

50 g

c)

0.190 g

d)

5.27 g

228.

A screwdriver has the density of 5.5 g/mL. It has a mass of 2.3 g. What is the screwdriver’s volume?

a)

2.4 mL

b)

0.42 mL

c)

12.65 mL

d)

0.42 g

229.

Which unit of measurement is used for volume?

a)

g

b)

cm

c)

g/mL

d)

mL

230.
Which liquid is the least dense?
a)
oil
b)
water
c)
syrup 
d)
plastic bottle
231.
Which property is an example of a chemical property?
a)
The ability to burn
b)
The ability to dissolve
c)
The ability to evaporate
d)
The ability to melt
232.
Blue Color
a)
Physical Property
b)
Chemical Property
233.
Flammability (burns)
a)
Physical Property
b)
Chemical Property
234.
Solubility (dissolves)
a)
Physical Proeprty
b)
Chemical Property
235.
Reacts with acid
a)
Physical Property
b)
Chemical Property
236.
Chewing food to break it down into smaller particles represents a _________ change, but the changing of starch into sugars by enzymes in the digestive system represents a ___________change. 
a)
Chemical then Physical 
b)
Physical then Chemical
c)
Both Physical
d)
Both Chemical
237.
This could be the dot diagram of
a)
O
b)
B
c)
Li
d)
Ne
238.
This is a correct dot diagram for fluorine (F)
a)
true
b)
false
239.

This is a Bohr Diagram of Neon. How many valence electrons does Neon have?

a)

2

b)

4

c)

6

d)

8

240.

How would you draw a Lewis dot diagram for Magnesium?

a)
b)
c)
d)
241.
Who stated that atoms cannot be divided?
a)
Democritus
b)
Dalton
c)
Thomson
d)
Bohr
242.
What scientist is best known for his "Plum Pudding" model of the atom?
a)
J.J. Thomson
b)
Ernest Rutherford
c)
John Dalton
d)
Democritus
243.
What contribution did John Dalton make to atomic theory? 
a)
He discovered that every atom was positively charged. 
b)
He discovered that every element consisted of one type of atom that couldn't be divided. 
c)
He discovered that atoms had nuclei. 
d)
He discovered that atoms could be divided into smaller parts. 
244.
In an atom, electrons move in definite orbits around the nucleus.
a)
Thomson
b)
Rutherford
c)
Bohr
d)
Democritus
245.
Place the following scientists in order, from earliest to latest: 
Rutherford, Dalton, Bohr, Thomson
a)
Dalton, Rutherford, Bohr, Thomson
b)
Thomson, Dalton, Rutherford, Bohr
c)
Dalton, Thomson, Rutherford, Bohr
d)
Bohr, Dalton, Rutherford, Thomson
246.
Rutherford's gold foil experiment provided evidence that...
a)
negative and positive charges are spread evenly throughout the atom.
b)
alpha particles have a positive charge.
c)
gold is not a dense as previously thought.
d)
there is a dense positively charged nucleus at the center of an atom.
247.
How did each model of the atom help to develop the atomic theory? 
a)
Each model provided opinions that were added.
b)
Each model showed different properties of the same structure. 
c)
Each model showed new particles that had been discovered.
d)
Each model built upon the other to show new particles or properties of previously discovered particles. 
248.

Subatomic particles with a negative charge

a)

Electrons

b)

Neutrons

c)

Protons

d)

Quarks

249.
Subatomic particles with a positive charge
a)
neutrons
b)
atomic mass
c)
protons
d)
isotopes
250.
Subatomic particles that are neutral in charge
a)
Neutrons
b)
Protons
c)
Nucleus 
d)
Electrons
251.
Where electrons are likely to be found as they travel around the nucleus
a)
Nucleus
b)
Electron Cloud
c)
Within a Proton
d)
Within a Neutron
252.

Which is an image of a beaker?

a)
b)
c)
d)
253.

Which is an image of a Erlenmeyer flask?

a)
b)
c)
d)
254.

Which is an image of a ring stand?

a)
b)
c)
d)
255.

Which is an image of a test tube clamp?

a)
b)
c)
d)
256.

Which piece of lab equipment would be most useful for the following task: Crush a chunk of chemical into a powder?

a)

Watch glass

b)

Thermometer

c)

Beaker

d)

Mortar and pestle

257.

Which piece of lab equipment would be most useful for the following task: Scoop ammonium nitrate out of its container and onto weigh paper to be measured?

a)

Watch glass

b)

Graduated cylinder

c)

Beaker

d)

Scoopula

258.

Which piece of lab equipment would be most useful for the following task: Find the mass of 125 grams of sodium chloride?

a)

Watch glass

b)

Thermometer

c)

Test tube rack

d)

Electronic balance

259.
The lab equipment seen in the image should be worn during a lab investigation when...
a)
using glassware.
b)
using chemicals.
c)
using heat/fire.
d)
using any of the above.
260.

What is the ground state electron configuration for oxygen?

a)

1s22s12p5

b)
1s22s22p4
c)

2s22p4

d)

2p42s21s2

261.

What is the ground state electron configuration for Chlorine (Cl)?

a)
1s2 2s2 2p6 3s2 3p5
b)
1s2 2s2 2p6 3s2 3p6
c)
1s2 2s2 2p6 3s2 3p7
262.
Which element is depicted from this orbital diagram
a)
Fluorine
b)
Neon
c)
Chlorine
d)
Argon
263.

What kind of matter is this?

a)

Element

b)

Compound

c)

Mixture of elements

d)

Mixture of compounds

e)

Mixture of elements and compounds

264.

What kind of matter is this?

a)

Element

b)

Compound

c)

Mixture of elements

d)

Mixture of compounds

e)

Mixture of elements and compounds

265.

What kind of matter is this?

a)

Element

b)

Compound

c)

Mixture

266.

What kind of matter is this?

a)

Element

b)

Compound

c)

Mixture of elements

d)

Mixture of compounds

e)

Mixture of elements and compounds

267.

What kind of matter is Calcium (Ca)?

a)

Element

b)

Compound

c)

Homogeneous Mixture

d)

Heterogeneous Mixture

268.

What kind of matter is salt (NaCl)?

a)

Element

b)

Compound

c)

Homogeneous Mixture

d)

Heterogeneous Mixture

269.

What kind of matter is soil?

a)

Element

b)

Compound

c)

Homogeneous Mixture

d)

Heterogeneous Mixture

270.

What kind of matter is Kool-Aid?

a)

Element

b)

Compound

c)

Homogeneous Mixture

d)

Heterogeneous Mixture

271.

Matter is...

a)

everything

b)

anything that takes up space.

c)

anything that has mass.

d)

anything that takes up space and has mass.

272.

How many different elements are in this chemical formula: C2H3OBr?

a)

4

b)

5

c)

6

d)

7

273.

Which of the following is an element?

a)

CO

b)

Co

c)

CO2

d)

CH4

274.

When two or more elements combine chemically, __________ is formed.

a)

a mixture

b)

an element

c)

a compound

d)

a solution

275.

Which of the following is the CORRECT definition of molecules?

a)

anything that has mass and takes up space

b)

a particle that has a positive charge

c)

substance made of two or more elements chemically combined

d)

two or more atoms held together by chemical bonds

276.

Which of the following represents compounds ONLY?

a)

Co, Ni, O, B, NO

b)

NaH, CO, NaCl, HF

c)

F, Fe, Li, Cu, Ne

d)

LiH, N, Ne, HBr

277.

A dish which contains a blackish-yellow powder is given to you. When you move a magnet over it, you see the black particles fly upwards and get stuck to the magnet. Only the yellow powder is left in the dish. Classify the blackish-yellow powder.

a)

element

b)

compound

c)

mixture

d)

solution

278.

Which of the following statements on isotopes is TRUE?

a)

Isotopes are elements of the same group in the Periodic Table.

b)

Isotopes occupy the same position in the Periodic Table.

c)

Isotopes have the same number of protons and neutrons.

d)

Isotopes have the same mass.

279.

The identity of a chemical element is determined by …..

a)

the number of protons it possesses.

b)

the number of electrons it possesses.

c)

the sum of the number of protons and neutrons it possesses.

d)

the sum of the number of protons and electrons it possesses.

280.

A species contains 8 neutrons, 8 protons and 10 electrons. The species is __________.

a)

a cation

b)

an anion

c)

a neutral atom

d)

an isotope

281.

Nitrogen has three occurring isotopes: nitrogen-13, nitrogen-14, nitrogen-15. The average atomic mass of nitrogen is 14.007 amu. Which isotope is the most abundant?

a)

Nitrogen-13

b)

Nitrogen-14

c)

Nitrogen-15

d)

Not enough information to determine

282.

On the 12C scale, the relative atomic mass of 12C is __________.

a)

1.000

b)

6.000

c)

12.000

d)

12.0006.02 × 1023\frac{12.000}{6.02\ \times\ 10^{23}}  

283.

Which of the following is the chemical formula for nitrate ion?

a)

NO3-

b)

NO2-

c)

N3-

d)

N3-

284.

Which is the formula of the ionic compound formed from magnesium ion and chloride ion?

a)

MgCl

b)

MgCl2

c)

Mg2Cl

d)

Mg2Cl3

285.

Choose the name for FeCl3.

a)

iron(II) chloride

b)

iron(III) chloride

c)

iron chloride(II)

d)

iron chloride(III)

286.

What is the amount, in mol, of H atoms in 2 mol of ammonia, NH3?

a)

2

b)

3

c)

6

d)

8

287.

Which of the following contains the largest amount of O atoms?

a)

1 mol of oxygen gas, O2

b)

1 mol of carbon monoxide gas, CO

c)

1 mol of ozone, O3

d)

1 mol of carbon dioxide, CO2

288.

Which of the following contains the same number of atoms as the number of atoms in 1.0 mol of oxygen gas, O2?

a)

2.0 mol of nitrogen gas, N2

b)

0.5 mol of boron trifluoride, BF3

c)

0.5 mol of nitrogen monoxide, NO

d)

2.0 mol of hydrogen gas, H2

289.

Which of the following is the unit for molar mass?

a)

mol

b)

amu

c)

g mol-1

d)

g

290.

Which of the following statements is FALSE?

a)

The numerical value for the molecular mass and molar mass of water is the same.

b)

The molecular mass of water is lighter than the molar mass of water.

c)

1 mol of water and 1 mol of hydrogen gas weighs the same.

d)

1 mol of water and 1 mol of hydrogen gas contains the same number of molecules.

291.

Calculate the amount, in mol, of 1.35 g of sodium hydrogen carbonate, NaHCO3.

a)

0.0161 mol

b)

0.0603 mol

c)

84.0 mol

d)

113.4 mol

292.

What is the value of the temperature, in °C, at standard temperature and pressure(STP)?

a)

22.4

b)

24.0

c)

0

d)

25.0

293.

Which of the following gas occupies the largest volume under room condition?

a)

1 mol of O2

b)

1 mol of CO2

c)

2 mol of He

d)

0.5 mol of CH4

294.

Which of the following statements is FALSE?

a)

The empirical formula and molecular formula of ammonia, NH3 is the same.

b)

The empirical formula of propane, C3H6 and butane, C4H8 are the same.

c)

The molecular formula of glucose, C6H12O6, is the same as its empirical formula.

d)

The empirical formula and molecular formula of methane, CH4 is the same.

295.

Mesitylene, a hydrocarbon found in crude oil, has an empirical formula of C3H4 and an experimentally determined molecular weight of 121 amu. Which is its molecular formula?

a)

C3H4

b)

C6H8

c)

C9H12

d)

C12H16

296.

Isopropyl alcohol, sold as rubbing alcohol, is composed of C, H and O. Combustion of 0.255 g of isopropyl alcohol produces 0.561 g of CO2. Determine the mass of C in isopropyl alcohol.

a)

0.0695 g

b)

0.153 g

c)

0.255 g

d)

0.561 g

297.

Which of the following is NOT the unit for molar concentration of a solution?

a)

M

b)

mol L-1

c)

mol dm-3

d)

mol mL-1

298.

Which of the following solutions has the highest concentration?

a)

0.5 mol of solute dissolved in 1.0 L of solution

b)

1.0 mol of solute dissolved in 2.0 L of solution

c)

1.0 mol of solute dissolved in 0.5 L of solution

d)

3.0 mol of solute dissolved in 2.0 L of solution

299.

Determine the molar concentration for 0.50 mol of sodium chloride, NaCl in 800 mL of solution.

a)

6.25 x 10-4 mol L-1

b)

0.625 mol L-1

c)

0.500 mol L-1

d)

0.400 mol L-1

300.

Calculate the percentage by mass (%w/w) for 2.00 g of sodium chloride, NaCl in 10.0 g of water.

a)

20.0%

b)

16.7 %

c)

3.42 x 10-3 %

d)

0.0615%

301.

Determine the oxidation number of phosphorus, P in phosphorus pentoxide, P2O5?

a)

0

b)

+2

c)

+5

d)

-2

302.

Determine the oxidation number of oxygen atom, O in oxygen gas, O2.

a)

0

b)

+1

c)

+2

d)

-2

303.

A + D + E → G + J

If 1 mol of A, 2 mol of D and 3 mol of E are mixed, the amount of G produced will depend on __________.

a)

reactant A

b)

reactant D

c)

reactant E

d)

product J

304.

L + M → Q

If 1 mol of L and 2 mol of M are mixed, determine the amount, in mol, of Q produced.

a)

1 mol

b)

2 mol

c)

3 mol

d)

4 mol

305.

The reaction

2H2 + O2 → 2H2O

is used to produce electricity in a hydrogen fuel cell. When 1.0 L of hydrogen gas, H2 is mixed with 1.0 L of oxygen gas, O2 0.85 L of water vapour, H2O is produced. 0.85 L of H2O is the ___________.

a)

actual yield

b)

theoretical yield

c)

percentage yield

d)

limiting reactant

306.
What is the oxidation number of N in NO2-1?
a)
-3
b)
+4
c)
-2
d)
+3
307.
If in a reaction, copper is reduced; its number of electrons has:
a)
Increased
b)
Decreased
c)
Remained Constant
d)
Varies Randomly
308.
What substance is oxidized in the following reaction?
4Fe + 3O2 --> 2Fe2O3
a)
Iron
b)
Fluorine
c)
Oxygen
309.

Defined as the loss of electrons.

a)

oxidation

b)

reduction

c)

redox

d)

OIL RIG

310.

What is the oxidation number of C in SrCO3?

a)

-4

b)

+2

c)

-6

d)

+4

311.

Defined as the gain of electrons.

a)

oxidation

b)

redox

c)

reduction

d)

LEO GER

312.
Which change does nitrogen undergo oxidation?
a)
A
b)
B
c)
C
d)
D
313.
Which expression represents the oxidation of the copper(I) ion?
a)
Cu+---->  Cu2+ + e–  
b)
Cu ----> Cu+ + e– 
c)
Cu+ + e– ----> Cu0
d)
Cu+ + e– ----> Cu2+
314.

What is a half-reaction of this equation, Na + Cl --> NaCl ?

a)

Cl + e- --> Cl-

b)

Cl - e- --> Cl-

c)

Na --> Na + e-

d)

Na° + Cl°--> Na+1Cl-1

315.

Combustion and single-replacement reactions are __________ redox reactions.

a)

always

b)

never

c)

sometimes

d)

mostly

316.

Defined as the gain of electrons.

a)

oxidation

b)

redox

c)

reduction

d)

LEO GER

317.

Cl2 + 2e- --> 2Cl - is an example of:

a)

a chemical reaction

b)

redox

c)

oxidation

d)

reduction

318.

An increase in oxidation number.

a)

more acidic

b)

reduction

c)

less basic

d)

oxidation

319.

A decrease in oxidation number.

a)

concentrated

b)

reduction

c)

oxidation

d)

dilute

320.

Substance that reduces another substance by losing electrons.

a)

reducing agent

b)

half-reaction

c)

electronegative atom

d)

oxidizing agent

321.

Substance that oxidizes another substance by accepting its electrons.

a)

reducing agent

b)

oxidation number

c)

combustion

d)

oxidizing agent

322.

What is the reducing agent here: N2 + 3H2 --> 2NH3

a)

N2

b)

H2

c)

NH3

d)

2NH3

323.

The equations below all show redox reactions.

Which oxide is oxidised in these reactions?

a)

Fe2O3

b)

CO

c)

ZnO

d)

NO

324.

Which change is an oxidation?

a)

FeO to Fe2O3

b)

Fe2O3 to FeO

c)

H2O2 to H2O

d)

H2O to H2

325.
Which statement is true:
Mg → Mg2+ + 2e–
a)
Mg gains 2 electrons
b)
Mg2+ loses 2 electrons
c)
Mg loses 1 electron
d)
Mg loses 2 electrons
326.

As an element is oxidized, its oxidation number...

a)

increases as electrons are gained

b)

decreases as electrons are gained

c)

decreases as electrons are lost

d)

increases as electrons are lost

327.

Which equation represents a redox reaction?

a)

NaOH + HNO3 → NaNO3 +H2O

b)

2AgNO3 + Zn → Zn(NO3)2 + 2Ag

c)

2NaCl + Pb(NO3)2 → PbCl2 + 2NaNO3

d)

CaCO3 + 2HCl → CaCl2 + H2O + CO2

328.
Which substance is reduced in the following reaction? 
NaOH + Li --> LiOH + Na
a)
Li
b)
Na
c)
O
d)
H
329.
A chemical reaction that involves a gain/loss of electrons is called:
a)
Double Replacement
b)
Neutralization
c)
Oxidation-Reduction
d)
Hydrolysis
330.
What element's don't have oxidation numbers?
a)
alkali metals
b)
noble gases
c)
halogens
d)
alkaline earth metals
331.

Oxidation is the _________ of electrons.

a)

loss

b)

gain

c)

sharing

d)

transfer

332.

Reduction is the ___________ of electrons.

a)

loss

b)

gain

c)

sharing

d)

transfer

333.

Which of the following represents oxidation?

a)

C → CH4

b)

Fe3+ → Fe2+

c)

Cl2 → 2Cl-

d)

Zn → ZnO

334.
If an atom loses electrons during a chemical reaction, the atom was:
a)
Oxidized
b)
Reduced
c)
Neutralized
d)
Precipitated
335.
Is calcium oxidized or reduced in the following reaction? 
2CaO--> 2Ca + O2
a)
Oxidized
b)
Reduced
336.
What reaction occurs at the anode?
a)
Ag+ + e- →Ag
b)
Ag → Ag+ + e-
c)
Ni2+ + 2e- → Ni
d)
Ni → Ni2+ + 2e-
337.
Which of the following half reactions correctly represents a reduction half reaction?
a)
Fe →Fe2+ + 2e-
b)
Pb4+ + 2e- →Pb2+
c)
2O-2 →O2 + 4e-
d)
Fe + 3e- →Fe3+
338.
In a voltaic cell electrons flow
a)
through the salt bridge
b)
from the cathode to the anode through the wire
c)
from the anode to the cathode through the wire
339.

What is the oxidation number of the chromium element in potassium dichromate (VI), K2Cr2O7 ?

a)

+2

b)

+3

c)

+5

d)

+6

340.

Iron (II) ions, Fe2+ in a solution can be changed to iron (III), Fe3+ by adding solution X. What is X?

a)

Sodium hydroxide

b)

Sodium thiosulphate

c)

Potassium hexacyanoferrate(II)

d)

Acidified potassium manganate (VII)

341.

Which substance is an oxidising agent?

a)

Bromine water

b)

Magnesium powder

c)

Iron(II) chloride solution

d)

Potassium iodide solution

342.

Which substance is used to change iron(III) ion to iron(II) ion?

a)

Bromine water

b)

Potassium iodide solution

c)

Potassium dichromate(VI) solution

d)

Acidified potassium manganate solution

343.

Which of the following is a reduction reaction?

a)

Carbon gains oxygen

b)

Zinc atom loses electrons

c)

Hydrogen sulphide loses hydrogen

d)

Bromine molecule gains electron

344.

The following chemical equation represents the extraction of silicon from quartz using coke.

SiO2 + C → Si + CO2

What is the change in oxidation number of silicon?

a)

+2 to 0

b)

+4 to 0

c)

0 to +2

d)

0 to +4

345.

Iron rusts in the presence of oxygen and water. Which method causes iron to rust faster?

a)

Coating iron with tin

b)

Touching iron with lead

c)

Galvanising iron with zinc

d)

Connecting iron to magnesium

346.

A method to control the rusting of underground iron pipelines is through sacrificial protection. Which of the following is the sacrificial metal?

a)

Copper

b)

Lead

c)

Tin

d)

Zinc

347.

Which metals an displace lead from lead(II) nitrate solution?

a)

Zinc

b)

Silver

c)

Copper

d)

Aluminium

348.

Metals are extracted from their ores.

What is the name of the ores that contain Fe2O3 as the main mineral?

a)

Cassiterite

b)

Hematite

c)

Magnetite

d)

Malachite

349.

What is the position of hydrogen ion in the electrochemical series?

a)

Between lead (II) ion and iron (III) ion

b)

Between zinc iron and iron (II) ion

c)

Between lead (II) ion and copper (II) ion

d)

Between zinc ion and tin (II) ion

350.

Aluminium reacts with iron (III) oxide as shown.

iron(III) oxide + aluminium → iron + aluminium oxide

Which statement about this reaction is correct?

a)

Aluminium is oxidised.

b)

Aluminium oxide is reduced

c)

Iron (III) oxide is reduced.

d)

Iron is oxidised.

351.

Why does the chlorine gas are able to displace the bromide ion from its salt solution?

a)

Because chlorine atoms are more electronegative than the bromide ions.

b)

Because bromide atoms are more electronegative than the chloride ions.

c)

Because chlorine atoms are more electropositive than the bromide atoms.

d)

Because the chlorine atoms transfer electrons from itself to the bromide atoms.

352.

Mg + PbCl2 --> MgCl2 + Pb. Which statement correctly describes the oxidation and reduction that occur?

a)

Mg is oxidized and Cl- is reduced

b)

Mg is oxidized and Pb+2 is reduced

c)

Mg is reduced and Cl- is oxidized

d)

Mg is reduced and Pb+2 is oxidized

353.

What is the oxidation number of Chlorine in HClO4?

a)

+1

b)

+3

c)

+5

d)

+7

354.
a)

I and IV

b)

II and III

c)

I, II and III

d)

II, III and IV

355.
a)

A

b)

B

c)

C

d)

D

356.
a)

Magnesium is reduced

b)

Zinc is an oxidising agent

c)

Oxidation number of zinc decrease from +2 to 0

d)

Magnesium atom gain electron

357.
a)

Chlorine water

b)

Iron(II) sulphate

c)

Hydrogen sulphide

d)

Sodium chloride

358.
a)

Magnesium strip

b)

Sulphur dioxide gas

c)

Potassium iodide solution

d)

Acidified potassium dichromate (VI) solution

359.
a)

Chlorine act as oxidising agent

b)

Hydrogen sulphide undergoes oxidation

c)

Oxidation number of hydrogen increases

d)

Oxidation number of sulphur changes from 0 to -2

360.
a)

A

b)

B

c)

C

d)

D

361.
a)

A

b)

B

c)

C

d)

D

362.
a)

A

b)

B

c)

C

d)

D

363.
Zinc reacts with steam to form zinc oxide and hydrogen. 
Zn + H2O ------> ZnO + H2   During the reaction, which substance is oxidised?  
a)
hydrogen  
b)
water  
c)
zinc            
d)
zinc oxide
364.
Electrolysis is an expensive way of extraction. Which metal has to be extracted from its ore by electrolysis?
a)
aluminium 
b)
 copper  
c)
lead  
d)
 iron
365.
The incomplete equation shows a reaction.   CuCO3 + H2SO4  ------> products   What are the products of this reaction?
a)
copper(II) oxide, sulphur dioxide, hydrogen 
b)
copper(II) oxide, sulphur dioxide, water 
c)
copper(II) sulphate, carbon dioxide, hydrogen 
d)
copper(II) sulphate, carbon dioxide, water 
366.

a)

A

b)

B

c)

C

d)

D

367.

a)

A

b)

B

c)

C

d)

D

368.

a)

A

b)

B

c)

C

d)

D

369.

a)

A

b)

B

c)

C

d)

D

370.

a)

A

b)

B

c)

C

d)

D

371.

a)

A

b)

B

c)

C

d)

D

372.

a)

A

b)

B

c)

C

d)

D

373.

a)

A

b)

B

c)

C

d)

D

374.

a)

A

b)

B

c)

C

d)

D

375.

a)

A

b)

B

c)

C

d)

D

376.

a)

A

b)

B

c)

C

d)

D

377.

a)

A

b)

B

c)

C

d)

D

378.
Name the compound.
a)
hexane
b)
2,3-dimethylbutane
c)
ethylbutane
d)
2,2-dimethylbutane
379.
Molecules with the same formula but different structures are known as:
a)
ions
b)
isomers
c)
isotopes
d)
ionic bonds
380.
Name the following
a)
4-ethyl-6-methyl nonane
b)
3-propyl-5-methyl octane
c)
2,4-dipropyl hexane
d)
4-ethyl-2-propyl heptane
381.

General formula of Alkene is

a)

CnH2n+2

b)

CnH2n+1OH

c)

CnH2n

382.

Propene reacts with steam in the presence of concentrated phosphoric acid as catalyst at temperature 300°C and pressure 60 atm to produce compound X

what is compound X?

a)

C3H6

b)

C3H8

c)

C3H7OH

383.

Hitungkan jisim molekul relatif sebatian Y tersebut .

Calculate the relative molecular mass of compound Y.


[Jisim

atom relatif: H=1, C=12] / [Relative atomic mass: H=1, C=12]

(a)  

384.

Apakah yang dimaksudkan dengan isomer ?

What is meant by isomer?

a)

Molecular formula that shows the type and number of atoms of each element in a molecular compound.

b)

A phenomenon where a compound has the same molecular formula but different structural formula

c)

Molecular structures that have different chemical properties but the same physical properties

385.

Nyatakan dua sifat fizik bagi sebatian X dan Y

State two physical properties of compound X and Y

a)

Insoluble in water

b)

Soluble in water

c)

Charged molecules

d)

Conduct electricity in aqueous and molten state

e)

Does not conduct electricity

386.

Dalam tindak balas I, sebatian P ditindakbalaskan dengan

wap air untuk menghasilkan sebatian R.

In reaction I, compound P is reacted with steam to produce compound R.

Nyatakan syarat-syarat bagi tindak balas I

State the conditions for reaction I

a)

Phosphoric acid

b)

temperature 300 degree C

c)

Pressure 60 atm

d)

Heat under reflux

e)

Concentrated sulphuric acid

387.

Sebatian X adalah bukan hidrokarbon. Jelaskan.

Compound X is a nonhydrocarbon compound. Explain.

a)

Produce less soot

b)

Have high melting and boiling points

c)

Have other elements besides C and H in its compounds

d)

Have isomers

e)

Form carbon dioxide and water upon combustion

388.

Which formula represents a saturated hydrocarbon?

a)

A

b)

B

c)

C

d)

D

389.

Which is the structure of

2,2,4-trimethylpentane?

a)
b)
c)
d)
390.

Which is a molecular formula?

a)
b)

C4H9Cl

391.

This structure belongs to the group called

a)

alkane

b)

alkene

c)

alcohol

d)

carboxylic acid

392.

What is a functional group?

a)

Group of atoms that give specific characteristics to a molecule

b)

Group of molecules that give specific characteristics to an atom

c)

Group of molecules that make up a group of atoms

d)

Group of atoms that give specific characteristics to an element

393.

Butane and pentane are in the same homologous series because

a)

they have the same general formula

b)

they are differ from each other by a -CH2 group.

c)

they can be prepared using similar methods.

d)

they have the same physical properties.

394.

A homologous series is series of compounds which

a)

have the same general formula

b)

differ from each other by a -CH2 group in the molecular formula

c)

show a gradual change in physical properties

d)

have similar chemical properties

395.

Both pentane and pentene can react with bromine water under the presence of sunlight but they do not belong to the same homologous series because

a)

they have different molecular size

b)

their melting point and boiling point not the same

c)

they do not have the same functional group

d)

they differ from each other by a -H2 group in the molecular formula

396.

Alcohol exists as liquid at room temperature

a)

yes

b)

no

397.

Carboxylic acid exist as liquid at room temperature

a)

yes

b)

no

398.

Solubility decreases in alcohol when the number of carbon is increases

a)

yes

b)

no

399.

Compound Q has the following properties.

- soluble in water

- boiling point is 780C

What is compound Q

a)

Ethane

b)

Ethene

c)

Ethanol

d)

Ethanoic acid

400.

Possible products of INCOMPLETE combustion

a)

Carbon (C)

b)

Carbon Monoxide (CO)

c)

Carbon Dioxide (CO2)

d)

Water (H2O)

401.

Which of the following can be used to distinguish between alkanes and alkenes?

a)

add a few drops of aqueous bromine

b)

add a few drops of Universal indicator

c)

add a piece of blue litmus paper

d)

add a piece of red litmus paper

402.

Which of the following statement is correct?

a)

Alkenes can turn aqueous bromine from reddish-brown to colourless.

b)

Alkenes can turn aqueous bromine from colourless to reddish-brown.

c)

Alkanes can turn aqueous bromine from reddish-brown to colourless.

d)

Alkanes can turn aqueous bromine from colourless to reddish-brown.

403.

Which are the following are all alkanes?

a)

methane, ethane, propane

b)

methane, ethene, propene

c)

methene, ethene, propene

d)

ethene, propene, butene

404.

What are the conditions for cracking?

a)

solid catalyst of aluminium oxide and silicon dioxide, at 600oC

b)

nickel catalyst at 200oC

c)

nickel catalyst at 600oC

d)

solid catalyst of aluminium oxide and silicon dioxide, at 200oC

405.

Alkanes undergo substitution by chlorine only in the presence of

a)

UV light

b)

oxygen

c)

water

d)

aqueous bromine

406.

Which of the following reactions apply to alkenes only

a)

cracking

b)

substitution

c)

addition

d)

combustion

407.

Alkanes and alkenes molecules are held together by

a)

weak covalent bond

b)

weak London forces of attraction

c)

strong covalent bonds

d)

both covalent and London forces

408.

Which statement is correct regarding the amount of carbon dioxide and water produced when 1 mole of butane and 1 mole of butene burn in excess oxygen?

a)

the amount of carbon dioxide produced by butene is less than butane

b)

the amount of carbon dioxide produced by butene is more than butane

c)

the amount of water produced by butene is less than butane

d)

the amount of water produced by butene is more than butane

409.

Alkenes undergo all the reactions below except

a)

combustion

b)

substitution

c)

addition

d)

polymerisation

410.

1 mole of ethene reacts with 0.5 mole of water according to the equation shown above. The percentage yield of the ethanol produced is 50%. What is the mass of ethanol produced? (RAM C=12, O=16, H=1)

a)

14g

b)

9g

c)

23

d)

11.5g

411.

Which of the following is the monomer for this polymer ?

a)

ethene

b)

ethane

c)

propane

d)

propene

412.

In polymer Z every carbon atom in the polymer chain is bonded to one hydrogen atom and one methyl group.

Which alkene could be polymerised to make polymer Z?

a)

but-1-ene

b)

but-2-ene

c)

methylpropene

d)

propene

413.
Which of the following undergoes addition reactions
a)
alkanes
b)
alkanes and alkenes
c)
alkanes and alkynes
d)
alkenes
414.
Which of the following does not contain only carbon and hydrogen
a)
alkanes 
b)
alkenes
c)
alkynes
d)
alkanols
415.

What is meant by an isomer?

a)

A molecule with the same structural formula but a different displayed formula

b)

A molecule with the same displayed formula but a different molecular formula

c)

A molecule with the same structural formula but a different molecular formula

d)

A molecule with the same molecular formula but a different displayed formula

416.

What problem is caused by both sulphur dioxide and nitrogen oxides?

a)

Global dimming

b)

Acid rain

c)

Global warming

d)

Toxic; stops haemoglobin transporting oxygen efficiently

417.

How are nitrogen oxides produced when burning fuels?

a)

The nitrogen impurities in the fuel react with oxygen from the air

b)

By complete combustion

c)

By nitrogen and oxygen in the air reacting together at high temperatures

d)

By incomplete combustion

418.

Out of alkanes and alkenes, which are more reactive and why?

a)

Alkanes, because they are more flammable

b)

Alkanes, because C-C are more easily broken than C=C

c)

Alkenes, because C=C are more easily broken than C-C

d)

Alkenes, because they have lost electrons to become ions

419.

What process is used to separate crude oil in hydrocarbons with different chain lengths?

a)

distillation

b)

fractional distillation

c)

cracking

d)

polymerisation

420.

What are the products of incomplete combustion?

a)

carbon monoxide

b)

water

c)

carbon

d)

hydrogen

421.

What are the products of incomplete combustion?

a)

carbon monoxide

b)

water

c)

carbon

d)

hydrogen

422.

What conditions are needed for cracking?

a)

high temperature

b)

high pressure

c)

catalyst

d)

low temperature

423.

What type of chemical reaction is this:

C3H8 + 5O2 --> 3CO2 + 4H2O

a)

Incomplete combustion

b)

Substitution with oxygen

c)

Complete combustion

d)

Substitution with chlorine

424.

What type of chemical reaction is this:

C3H8 + Br2 --> C3H7CBr + HBr

a)

Incomplete combustion

b)

Substitution with chlorine

c)

Complete combustion

d)

Substitution with bromine

425.

The following is a product of the reaction between propane and chlorine: C3H8Cl

a)

TRUE

b)

FALSE

426.

The following is a product of the reaction between propane and chlorine: C3H8Cl2

a)

TRUE

b)

FALSE

427.

The following is a product of the reaction between propane and chlorine: C3H7Cl

a)

TRUE

b)

FALSE

428.

The following is a product of the reaction between propane and chlorine: C3H7Cl2

a)

TRUE

b)

FALSE

429.

The following is a product of the reaction between propane and chlorine: C3HCl7

a)

TRUE

b)

FALSE

430.

The following is a product of the reaction between propane and chlorine: HCl

a)

TRUE

b)

FALSE

431.

What color does bromine water turn in the presence of an alkane?

a)

Orange

b)

Blue

c)

Colorless

d)

Green

432.
What does incomplete combustion produce that complete combustion doesn't?
a)
Carbon monoxide
b)
Water
433.
What is the colour change when an alkene reacts with bromine water?
a)
Turns clear
b)
Turns orange
c)
From colourless to orange
d)
From orange to colourless
e)
Turns colourless
434.

What are the first 3 alkenes in increasing carbon chain length?

a)

Methene, ethene, propene

b)

Ethene, propene, pentene

c)

Ethene, propene, butene

d)

Butene, ethene, propene

e)

Methene, ethene, propane

435.

What conditions are necessary in the reaction of alkenes with hydrogen?

a)

300°C, Iron catalyst

b)

60°C, Nickel catalyst

c)

600°C, High pressure

d)

Low temperature, Nickel catalyst

e)

600°C, High temperature

436.

What is the suitable chemical tests to distinguish between propane and propene?

a)

Baeyer's Test and Bromine Test in dichloromethane

b)

Baeyer's Test and Lucas Test

c)

Brady Test and Tollen's Test

d)

Bromine Test in dicloromethane and Lucas Test

437.

Which name of reaction not in chemical reactions of alkene?

a)

Halogenation

b)

Hydrohalogenation

c)

Hydration

d)

Esterification

438.

What is the type of reaction in chemical reactions of dehydration?

a)

Addition

b)

Substitution

c)

Rearrangement

d)

Elimination

439.

What is the Markonikov's Rule?

a)

H atom add to the carbon atom of the duuble bond greater number of C atoms

b)

H atom add to the carbon atom of the double bond greater number of H atoms

c)

H atom add to the carbon atom of the double bond greater number of N atoms

440.

Which of the catalyst can not use in chemical reaction hydrogenation?

a)

Pd

b)

Pt

c)

Ps

d)

Ni

441.

C10H22 --> C5H12 + C3H6 + ?

a)

C2H4

b)

C3H4

c)

CO2

d)

CH4

442.

Alcohol can react with hydrogen halides to produce alkyl halides but not all hydrogen halides react spontaneously (need catalyst). Based on above information, which of the follwing reactions is correct?

a)

A

b)

B

c)

C

d)

D

e)

E

443.

Ether molecules are polar, but do not form hydrogen bonds with other ether molecules because:

a)

Ether molecules are so reactive that they never have an opportunity to form hydrogen bonds

b)

The molecules are generally too large

c)

There are too many hydrogen atoms on the molecules to bond with just one oxygen atom

d)

Only binary compounds form hydrogen bonds.

e)

There is no hydrogen atom bonded to the oxygen.

444.

The molecular formula of pentanoic acid is

a)

C5H11O2

b)

C5H9O2

c)

C5H10O

d)

C5H10O2

e)

C5H12O2

445.

Physical and chemical properties of alcohols are mainly due to the presence of hydroxyl group. Which of the following is not describe the physical properties of alcohols?

a)

Alcohols have higher boiling points than alkanes of similar molecular weight

b)

The boiling point increases with increase in branching in aliphatic carbon chains

c)

The boiling point of alcohols increases with increase in the number of carbon atoms in the aliphatic carbon chain

d)

Low-molecular-weight alcohols are completely soluble in water

e)

ethanol not soluble in n-hexane

446.

Which one of the isomeric alcohols of formula C5H12O can be prepared by reduction of a ketone with LiAlH4 ?

a)

Pentan-1-ol

b)

2-methylbutan-1-ol

c)

3-methylbutan-2-ol

d)

2,2-dimethylpropan-1-ol

e)

3-methylpentan-3-ol

447.

How many chain isomer that C5H10O2 (carboxylic acid only) has?

a)

4

b)

5

c)

6

d)

7

e)

8

448.

which of product will be obtained when 2-methyl-2-pentanol oxidized by K2Cr2O7?

a)

there is no reaction

b)

Ketone

c)

aldehyde

d)

ester

e)

carboxylic acid

449.

This functional group is the product from oxidation of a

a)

primary alcohol

b)

secondary alcohol

c)

tertiary alcohol

d)

no more alcohol please miss!

450.

What can be used to oxidise alcohols?

a)

MnO4-

b)

KMnO4/H+

c)

H+

d)

KMnO4

451.

What can be used to oxidise alcohols?

a)

K2Cr2O72-

b)

Cr2O72-/H+

c)

H+

d)

Cr2O72-

452.

What is the product from the oxidation of propan-2-ol?

a)

propandiol

b)

propanal

c)

propanoic acid

d)

propanone

453.

What is the functional group formed when conc. H2SO4 reacts with alcohols?

a)

alkene

b)

chloroalkane

c)

diol

d)

alkane

454.

How could you form an alcohol from an alkene?

a)

H2O/H+

b)

KOH(alc)

c)

KOH(aq)

d)

SOCl2

455.

Which would be the major product from the reaction of butan-2-ol with conc. H2SO4?

a)

but-1-ene

b)

but-2-ene

456.

Can propan-2-ol form major and minor products when reacted with conc. H2SO4?

a)

yes

b)

no

457.

Which would be the major product from the reaction of propene with H2O/H+?

a)

propan-1-ol

b)

propan-2-ol

458.
Classify the compound based on the functional group present.
a)
alkane
b)
alkene
c)
alkyne
d)
aromatic
459.
Classify the compound based on the functional group present.
a)
carboxylic acid
b)
aldehyde
c)
alcohol
d)
ether
460.

Select the formula for the following name: Butanol

a)

C4H9OH

b)

C4H10OH

c)

C4H10

d)

C4H7OH

461.

Which of the following must be true about ethanol?

a)

It has an amine functional group

b)

It is made from a 3 carbon chain

c)

It contains only single bonds

d)

All the above are true

462.

What is the name of the compound?

a)

2-chloropropan-1-ol

b)

2-chloropentan-1-ol

c)

3-chloropropanol

d)

2-bromopropan-1-ol

463.

What is the name of this compound?

a)

2-2,dichloropropane

b)

2,2-chloropropane

c)

2,2-dichloropropene

d)

2,2-dichloropropane

464.

What is the name of this compound?

a)

2,4-chlorohex-3-ene

b)

2,4-dichlorohexene

c)

2,4-dichlorohex-3-ene

d)

2,3,4-trichlorohexane

465.

What is the name of this compound?

a)

ethanoic acid

b)

methanoic acid

c)

propanoic acid

d)

carboxylic acid

466.

‘Bronze is harder than copper’. Which of the following is the best to explain the statement?

a)

Atoms in bronze are arranged closely packed and less empty spaces.

b)

Layers of atoms in bronze are not easily slide over each other.

c)

Atomic size of copper and tin is different.

d)

Bronze is a mixture of copper and tin

467.

What is the composition of brass?

a)

30% tin and 70% copper

b)

10% tin and 90% copper

c)

30% zinc and 70% copper

d)

10% zinc and 90% copper

468.

Which of the following statements below is true?

a)

Copper is more ductile than brass

b)

Brass is more malleable than copper

c)

Iron is shinier than stainless steel

d)

Iron is more resistant to corrosion than steel

469.

Which of the following mixture forms a light and strong alloy to make the body of a speeding boat?

a)

iron and carbon

b)

Aluminium and copper

c)

Copper and nickel

d)

Tin and lead

470.

Which of the following properties does not belong to an alloy as compared to its pure metal?

a)

Stronger

b)

More corrosion resistant

c)

Harder

d)

More malleable

471.

Diagram above shows the arrangement of atoms in brass. Which of the following could be atoms X and Y?

a)

X : Copper Y: Tin

b)

X: Zinc Y: Copper

c)

X: Iron Y: Carbon

d)

X: Copper Y: Zinc

472.

Brass is an alloy consisting of a mixture of

a)

copper and zinc

b)

copper and lead

c)

copper and tin

d)

tin and lead

473.

The main element present in brass and bronze is

a)

copper

b)

lead

c)

zinc

d)

tin

474.

Which of the following alloy is used to make the body of an aeroplane?

a)

Brass

b)

Duralumin

c)

Steel

d)

Pewter

475.

Which of the following is not the aim of alloying?

a)

To increase the strength and hardness of metal.

b)

To prevent corrosion of metal.

c)

To improve the appearance of metal

d)

To increase the melting point.

476.

This alloy contain 93% aluminium, 3% copper, 3% magnesium and 1% manganese. This alloy is known as

a)

Brass

b)

Bronze

c)

Steel

d)

Duralumin

477.

Alloy is a ...

a)

A chemical compound with combination between metal and non-metal

b)

A salt contain of two or more elements where the main element is non-metal

c)

Mixture of two or more elements where the main element is metal

478.

What is the main metal used to made pewter?

a)

Tin

b)

Copper

c)

Antimony

d)

Aluminium

479.

Which is the follow processes increases the hardness of a metal?

a)

Purification

b)

Plating

c)

Alloying

d)

Electrolysis

480.

Alloy that can be used for jewellery, machine bearings, and door furniture

a)

brass

b)

bronze

c)

pewter

d)

duralumin

481.

All alloys are mixtures.

a)

True

b)

False

482.
Which type of glass is most commonly used in cookware?
a)
soda lime glass
b)
borosilicate glass
c)
laminated glass
d)
fused silica glass
483.
What is the main ingredient in glass?
a)
soda ash
b)
limestone
c)
borax
d)
silica
484.
Silica is the made of what 2 elements?
a)
silicon and sulfur
b)
sulfur and carbon
c)
carbon and oxygen
d)
silicon and oxygen 
485.

The type of glass used to make laboratory glass ware is

a)

Borosilicate glass

b)

Fused glass

c)

Lead glass

d)

Soda glass

486.

Silicon carbide, SiC, is an example of advanced ceramic which can be used to make

a)

car brakes

b)

window panes

c)

electrical cables

d)

water tanks

487.

Which of the following is correct about the properties of soda-lime glass and borosilicate glass?

a)

Soda-lime glass has a low density and a high melting point, whereas borosilicate glass has a high density and a low melting point.

b)

Soda-lime glass has a low density and a low expansion coefficient, whereas borosilicate glass has a high density and a high expansion coefficient.

c)

Soda-lime glass has a high melting point and a low thermal shock resistance, whereas borosilicate glass has a low melting point and a high thermal shock resistance.

d)

Soda-lime glass has a low expansion coefficient and a low thermal shock resistance, whereas borosilicate glass has a high expansion coefficient and a high thermal shock resistance.

488.

What type of glass is formed when calcium carbonate is heated with silicon dioxide?

a)

Fused glass

b)

Borosilicate glass

c)

Lead crystal glass

d)

Soda lime glass

489.

Diagram 1 shows several products of a substance. Which of the following is the substance?

a)

Optic glass

b)

Fused glass

c)

Fibre glass

d)

Photochromic glass

490.

Which of the following composite materials is DURABLE?

a)

Reinforced concrete

b)

Optical fibre

c)

Superconductor

d)

Fibre glass

491.

Which of the following is NOT the use for superconductor?

a)

Particle accelerator

b)

NMR

c)

Neutron producer

d)

MRI

492.

Traditional ceramics are made from (a)  

493.

(a)   ceramic is used in dental implants.

494.

(a)   is a composite material made up of hydroxyapatite and collagen

495.

(a)   is the matrix substance for the photochromic glass.

496.

The atom is the smallest unit of a(n) _________________.

a)

element

b)

compound

c)

fraction

d)

none of these

497.

The molecule is the smallest unit of a(n) _________________ .

a)

compound

b)

element

c)

mixture

d)

none of these

498.

Each element has its own unique number of __________________.

a)

protons

b)

neutrons

c)

electrons

d)

nuclei

499.

What two particles are in the nucleus of an atom?

a)

protons and electrons

b)

electrons and neutrons

c)

protons and neutrons

500.
Which of these is the electron?
a)
A
b)
B
c)
C
d)
D