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Kertas 1 kimia percubaan

Total questions: 50

Worksheet time: 1hrs 17mins

Name
Class
Date
1.

Which substance is a compound?

a)

Carbon

b)

Gold

c)

Silver

d)

Air

2.

What is the function of aspartame and saccharine?

a)

Flavouring

b)

Preservative

c)

Antioxidant

d)

Stabilise

3.

Which sulphate salt insoluble in water

a)

Calcium sulphate

b)

Copper (II) sulphate

c)

Potassium sulphate

d)

Aluminium sulphate

4.

What is the meaning of avogadro’s number?

a)

Mass of one mole of a substance

b)

Pressure of one mole of a substance

c)

Number of particles in one mole of a substance

d)

Volume occupied by one mole of gas

5.

Among the following , which is correct regarding the chage of physical properties of elements going down the group 17 in the Periodic Table of elements?

a)

Particles conditions change form gas, liquid then solid

b)

The melting point decreases

c)

The density decreases

d)

The element colour is getting brighter

6.

Which pair is matched correctly ?

a)

A

b)

B

c)

C

d)

D

7.

Which of the following can be added to water to make a solution an electrolyte?

a)

Ethanol

b)

Calcium carbonate

c)

Sodium

d)

Copper (II) sulphate

8.

Which substance is an alkali

a)

Zinc hydroxide

b)

Copper (II) sulphate

c)

Potassium hydroxide

d)

Aluminium oxide

9.

The following reaction occurs in Haber Process :
N₂  +  3H₂ →\rightarrow  2NH₃
What is the optimum condition of this reaction?

a)

A

b)

B

c)

C

d)

D

10.

Which of the following processes occurs at the highest rate of reaction

a)

Melting

b)

Freezing

c)

Evaporation

d)

Condensation

11.

Which of the following is true about hydrocarbons?

a)

All organic compounds are hydrocarbons ?

b)

Hydrocarbons are soluble in water

c)

Hydrocarbons contains hydrogen and carbon only

d)

Hydrocarbons are saturates organic compounds

12.

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

a)

Chlorine water

b)

Potassium manganate (VII) solution

c)

Magnesium powder

d)

Potassium dichromate (VI) solution

13.

Which of the following example is and endothermic reaction

a)

Photosynthesis

b)

Respiration

c)

Neutralisation

d)

Oxidation of metal

14.

Diagram 1 shows the set up of apparatus to determine the empirical formula of an oxide of metal X. Which of the following is metal X

a)

Zinc

b)

Lead

c)

Tin

d)

Copper

15.

Diagram 2 shows apparatus A used in an experiment

Apparatus A is made of glass M. What is glass M ?

a)

Soda lime glass

b)

Borosilicate glass

c)

Lead crystal glass

d)

Photochromic glass

16.

What is the properties for aluminium oxide?

a)

Acid

b)

Base

c)

Neutral

d)

Amphoteric

17.

Which physical processes involve the absorbtion of heat energy?

I Melting

II Freezing

III Evaporation

IV Condensation

a)

I and II

b)

II and IV

c)

III and IV

d)

I and III

18.

Diagram 4 shows a chemical cell. Which of the following is suitable as substance M

a)

Glacial ethanoic acid

b)

Molten naphthalene

c)

Sodium chloride solution

d)

Glucose solution

19.

The following equation is a represent for the preparation of ethene. What is the name of the reaction?

a)

Dehydration

b)

Substitution

c)

Oxydation

d)

Addition

20.

Which of the following shows the balanced chemical equation?

a)

H2O2 → 2H2O + O2

b)

2NaOH + H2SO4 → Na2SO4

c)

C3H8 + 5O2 → 3CO2 + 4H2O

d)

HNO3 + CaCO3 → Ca(NO3)2 + CO2 H2O

21.

The P element forms coloured ions in the solution.

Where is the location of the element P in the Periodic Table of Element

a)

Group 1, period 3

b)

Group 8, period 4

c)

Group 13 , period 3

d)

Group 18 , period 4

22.

Table 1 shows the result obtained from the decomposition of hydrogen peroxide.

What is the average rate of decomposition of hydrogen peroxide in the second minute?

a)

40 cm3 min-1

b)

80 cm3 min-1

c)

100 cm3 min-1

d)

120 cm3 min-1

23.

Compound Q has the following properties.

- Liquid in the room temperature

- Low melting and boiling points

-do not conduct electricity

-Do not dissolve in water

-Dissolve in organic solvents


What is Q?

a)

Propanol

b)

Hexane

c)

Naphthalene

d)

Sodium chloride

24.

Which of the following is correct about an exothermic reaction?

a)

Total energy content of product is higher than total energy content of reactant.

b)

Total energy content of product is lower than total energy content of reactant.

c)

Chemical reactions that absorb heat from the environment

d)

The heat value of reaction is positive.

25.

What will happen when natural rubber is vulcanized?

a)

The rubber becomes lighter

b)

The melting point of the rubber decreases

c)

More cross-links between sulphur atoms abd rubber molecules formed

d)

More double bonds formed between carbon atoms

26.

The following ionic equation represents a redox reaction.

Mg + Cu2+ → Mg2+ + Cu

Which reaction in the list can be represented using the given ionic equation?

a)

Magnesium nitrate solution is moxed with copper (II) nitrate solution

b)

Mixture of magnesium oxide and copper is heated strongly

c)

Copper strip is dipped into the magnesium sulphate solution

d)

Magnesium tape is dipped into the copper (II) solution

27.

Which potassium hydroxide solution neutralises 10 cm3 sulphuric acid 0.5 mol dm-3 completely ?

a)

Volume = 5 cm3 Concentration = 0.5 mol dm-3

b)

Volume = 10 cm3 Concentration = 0.5 mol dm-3

c)

Volume = 5 cm3 Concentration = 0.5 mol dm-3

d)

Volume = 5 cm3 Concentration = 0.5 mol dm-3

28.

a)

A

b)

B

c)

C

d)

D

29.

What is X solution ?

I. Sodium chloride

II. Potassium carbonate

III. Barium hydroxide

IV. Sodium sulphate

a)

I and II

b)

I and IV

c)

II and III

d)

III and IV

30.
a)

A

b)

B

c)

C

d)

D

31.

a)

A

b)

B

c)

C

d)

D

32.

a)

A

b)

B

c)

C

d)

D

33.

a)

A

b)

B

c)

C

d)

D

34.

I. Not easily biodegradable

II. Causes the formation of algae

III. Release gas causes depletion of the ozone layer

IV. Combustion of this material releases poisonous gases

a)

I and II

b)

III and IV

c)

II and III

d)

I and IV

35.
a)

A

b)

B

c)

C

d)

D

36.

What is the molecular formula of substance X ?

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

a)

C4H8

b)

C4H10

c)

C5H12

d)

C5H10

37.
a)

A

b)

B

c)

C

d)

D

38.

Which of the following statements are correct ?

I. Heat is absorbed

II. Environment temperature increases

III. The energy level of reactant is lower than product

IV. The energy level of product is lower than reactant

a)

I and II

b)

I and III

c)

I and IV

d)

II and IV

39.
a)

A

b)

B

c)

C

d)

D

40.

a)

A

b)

B

c)

C

d)

D

41.

a)

A

b)

B

c)

C

d)

D

42.

a)

A

b)

B

c)

C

d)

D

43.

a)

I and II

b)

I and III

c)

II and IV

d)

III and IV

44.

a)

A

b)

B

c)

C

d)

D

45.

a)

A

b)

B

c)

C

d)

D

46.

What are the proton number of atoms X and Y ?

a)

Atom X = 4 Atom Y = 7

b)

Atom X = 8 Atom Y = 8

c)

Atom X = 10 Atom Y = 18

d)

Atom X = 6 Atom Y = 17

47.
a)

A

b)

B

c)

C

d)

D

48.

a)

A

b)

B

c)

C

d)

D

49.

Diagram 13 shows a conversation between cikgu munah , alicia and ali in their class. You cannot read the dialogue because it was written using lead (II) nitrate solution and consist secret code. In order to read the dialogue, you are required to apply a kind a solution on the dialogue space.What is the solution?

a)

Sodium chloride

b)

Zinc sulphate

c)

Calcium bromide

d)

Potassium iodide

50.
a)

A

b)

B

c)

C

d)

D

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