WorksheetsQuick Revise Chemistry Chemistry SPM
Total questions: 40
Worksheet time: 45mins
Which of the following substance is an element?
Water
Neon
Oxygen
Which of the following substances exists as atoms?
Naphthalene
Magnesium
Chlorine gas
Lead(II) bromide
The following table shows the melting point and boiling point of four substances.
Which substance is a liquid at room temperature?
A
B
C
D
Substance X exists in solid state at 200 ⁰C. Which of the following are the melting point and the boiling point of substance X?
Melting point: -50°C
Boiling point: 100°C
Melting point: 35°C
Boiling point: 185°C
Melting point: 115°C
Boiling point: 668°C
Melting point: 250°C
Boiling point: 750°C
What is the nucleon number of atom shown?
11
12
22
23
The following information is about silicon atom.
· Proton number = 14
· Nucleon number = 28
How many valence electrons are in the silicon atom?
2
4
8
14
Ion W2+ has an electron arrangement of 2.8 and nucleon number is 24. What is the number of neutron of atom W?
36
24
12
2
Magnesium has 12 protons in the nucleus of its atom. Which is following the electron arrangement of the magnesium ion?
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+?
59
60
61
62
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+?
20
22
18
40
Z- ion has 18 neutron and 18 electron.
Which of the following is the proton number for atom Z?
17
18
An ion T2- has an electron arrangement of 2.8. What is the proton number for the atom of element T?
4
6
8
10
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?
Group 2, Period 3
Group 12, Period 2
Group 12, Period 3
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.
12.01
24.32
25.00
36.00
Which of the following isotopes is used to detect the leakage of underground pipe?
Carbon-14
Sodium-24
Cobalt-60
Iodine-131
Which of the following is the use of the isotope iodine-131?
Treat thyroid gland cancer.
Generate electricity for satellites.
Detecting underground pipe leakage.
Estimate the age of fossils.
What is the empirical formula for the compound?
CH2O
C2H2O2
CH2O2
C2H5O2
How many lithium atoms that have the same mass as 2 nitrogen atoms?
[Relative atomic mass: Li = 7; N = 14]
2
4
6
8
What is the relative molecular mass of sulphur hexafluoride?
[Relative atomic mass: F = 19; S = 32]
51
108
133
146
Which of the following substances has 3.01 x 1023 of atom?
Avogadro Constant : 6.02 x 1023 mol-
0.25 mole of water
0.5 mole of carbon
0.5 mole of oxygen gas
0.3 mole of hydrogen gas
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]
7.2 dm3
12 dm3
14.4 dm3
18 dm3
Which of the following is the correct chemical formula for copper(II) iodide?
CuI
Cu2I
CuI2
Cu2I2
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]
20
36
40
56
The following is a chemical equation:
H2SO4(aq) + 2KOH(aq) → K2SO4(aq) + xH2O(l)
What is the value of x?
1
2
3
4
2NaClO3 (s) → 2NaCl (s) + 3O2 (g)
12.00 moles of NaClO3 will produce how many grams of O2?
Given relative atomic mass O = 16
256 g of O2
576 g of O2
288 g O2
How many moles of oxygen are produced when 6.7 moles of KClO3 decompose completely?
6.7 mol
1.0 mol
10.1 mol
4.5 mol
Element X has an proton number of 19. Which group does this element belong to?
Group 1
Group 7
Group 17
Group 19
Element H has an proton number of 11. In which period of the periodic table would you find this element?
Period 1
Period 2
Period 3
Period 4
Element G has a proton number of 11. Where is element D located in the Periodic Table of Elements?
Group 11, Period 3
Group 11, Period 2
Group 1, Period 3
Group 1, Period 2
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?
Group 16, Period 3
Group 13, Period 4
Group 16, Period 2
Group 2, Period 3
Which compound is an ionic compound?
Aluminium chloride
Carbon dioxide
Potassium oxide
Hydrogen chloride
Which of the following substances is a covalent compound?
Antara berikut, bahan yang manakah adalah sebatian kovalen?
Lead(II) iodide / Plumbum(II) iodida
Silver / Argentum
Phosphorus trichloride / Fosforus triklorida
Sodium chloride / Natrium klorida
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.
Atom N donates six electrons
Atom M donates one electron
A covalent compound is formed
The chemical formula of the compound formed is MN
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?
B2C
BC2
CB4
C3B2
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.
X3Y
Y3X
XY
Y6X
In the formation of a dative bond,
the shared electron pair originates from either one atom only.
the shared electron originates from both atoms that are involved.
electrons are transferred from one atom to another.
electrons form a sea of electrons.
How can dative bond form between ammonia, NH3 and hydrogen ion, H+ to form ammonium ion, NH4+?
Ammonia, NH3 and hydrogen ion, H+ will each share one electron
The pair of electrons not involved in covalent bond in ammonia, NH3 will be shared with hydrogen ion, H+
Ammonia, NH3 and hydrogen ion, H+ will each share one electron
Why do metals conduct electricity?
They are shiny
The electrons are delocalised and able to move
The electrons are held tightly within the lattice
The electrons are shared between two metal ions
What is the bond that is found between ammonia molecules?
Covalent bond
Hydrogen bond
Metal bond
Ionic bond
Why can compounds that can form hydrogen bonds have higher boiling points than compounds that cannot form hydrogen bonds?
Compounds that can form hydrogen bonds need to overcome weak Van der Waals attraction forces
Compounds that can form hydrogen bonds need to overcome strong hydrogen bonds
Compounds that can form hydrogen bonds need to overcome weak Van der Waals attraction forces and strong hydrogen bonds
