This document contains a 38-question multiple choice exam on chemistry concepts. The questions cover topics like atomic structure, chemical equations, acid-base reactions, oxidation-reduction, organic compounds, and the periodic table. Sample questions identify the atomic symbol for chlorine based on its properties, determine the products of a reaction between an acid and base, and calculate the mass of a substance produced in a chemical reaction.

1. SPM 2003
PAPER 1
1 Figure 1 shows the symbol for a chlorine atom
Figure 1
Which of the following is true based on the symbol in Figure 1?
Proton number Nucleon number Number of Electrons
A 17 37 17
B 17 20 17
C 20 37 20
D 37 17 37
2 Figure 2 shows the set-up of the apparatus to determine the empirical formula of a metal
oxide.
Figure 2
Which of the following metal oxides is suitable to be used in Figure 2?
A Zink oxide
B Magnesium oxide
C Aluminium oxide
D Copper(II) oxide
3 Butane in cooking gas burns to release carbon dioxide. Both butane and carbon dioxide
are
A ionic compounds
B organic compounds
C covalent compounds
D hydrocarbon compounds
4 Which of the following substances is an electrolyte?
A Pure ethanol
B Molten naphthalene
C Tetrachloromethane
D Dilute ethanoic acid
1/P1
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2. SPM 2003
PAPER 1
5 Which of the following is true of a weak acid?
A Unable to neutralise alkali.
B The pH value is more than 7.
C Able to change red litmus paper to blue.
D Ionizes partially in water to produce hydrogen ions.
6. Which of the following properties does not show that an alloy is better than its pure
metal form?
A Harder
B Stronger
C More ductile
D More corrosion resistant
7 The equation below represents the reaction in the industrial preparation of ethanol.
Catalyst X
CH2= CH2 + H2O CH3CH2OH
Ethene steam 300oC/ 60 atm
ethanol
What is catalyst X?
A Platinum
B Phosphoric acid
C Aluminium oxide
D Concentrated hydrochloric acid
8 Which statement is true of both methanol and ethanol
A They have different functional groups.
B All their physical properties are similar
C All their chemical properties are different
D They can be represented by the same general formula.
9 Which of the following pairs of general and homologue series is correct?
General Formula Homologue series
A CnH2n Alkane
B CnH2n+ 2 Alkene
C CnH2n+ 1OH Alcohol
D CnH2n+ 1 COOH ester
10 A hydrocarbon is a chemical compound consisting of
A carbon and oxygen only.
B carbon and hydrogen only.
C carbon, hydrogen, and oxygen only.
D hydrogen, oxygen, and nitrogen
2/P1
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3. SPM 2003
PAPER 1
11 Below is the half equation of a reaction.
2 Br- → Br2 + 2 e
What is meant by oxidation based on the reaction?
A Electrons are received by bromine
B Electrons are donated by bromine
C Electrons are received by bromide ions
D Electrons are donated by bromide ions
12 Which of the following absorbs heat from the surrounding?
A Adding acid to alkali
B Adding concentrated acid to water
C Dissolving ammonium chloride in water
D Dissolving anhydrous copper(II) sulphate in water
13. Psychiatric patients are always restless and normally experience difficulties in sleeping.
Which medicine is suitable to treat these patients?
A Aspirin
B Codeine
C Barbiturate
D Streptomycin
14 Figure 3 shows a model of an atom.
Which of the following is true of the atomic model?
I Proposed by Neil Bohr.
II Was built based on the existence of the neutron.
III Shows that electrons move in shells around the nucleus.
IV Discovered through the bombardment experiment of alpha particles on gold
foil.
A I and III only
B II and IV only
C I, II, and III only
D I, II, III, and IV
3/P1
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4. SPM 2003
PAPER 1
15 Figure 4 shows the set-up of apparatus in an experiment to determine the empirical
formula of an oxide of lead.
Figure 4
Which of the following is not correct in the set-up of apparatus for this experiment?
I No Bunsen burner
II Fixing of the cork
III Position of the thistle funnel
IV Position of the delivery tube
A I and III only
B II and IV only
C I, II, and III only
D I, III, and IV only
16 What are the products of the reaction between ethanoic acid and sodium carbonate?
I water
II Ethyl ethanoate
III carbon dioxide
IV Sodium ethanoate
A I and III only
B II and IV only
C I, II and III only
D I, III and IV only
17 Which pair of the substance represented by the following formulae would result in a
reaction?
I HCl(aq) + KOH(aq)
II HNO3(aq) + NaNO3(aq)
III H2SO4(aq) + CuSO4(aq)
IV CH3COOH(aq) + NaOH(aq)
A I and IV only
B II and III only
C I, II and IV only
D I, II, III and IV
4/P1
SPM03

5. SPM 2003
PAPER 1
18 Which of the following can be used to determine rate of reaction?
I Release of gas per unit time
II Change of colour intensity per unit time
III Formation of precipitate per unit time
IV Increase in the mass of reactants per unit time
A I and II only
B III and IV only
C I, II and III only
D I, III and IV only
19 Which of the following are oxidizing agents?
I zinc
II bromine water
III potassium iodide solution
IV Acidified potassium manganate(VII) solution
A I and III only
B II and IV only
C I, II and III only
D I, II and IV only
20 Figure 5 shows test tubes X and Y, used in to investigate the effects of magnesium and
copper on the rusting of iron.
Figure 5
Which of the following are true of the experiment?
I Phenolphthalein solution in both test-tubes is to detect the presence of
hydroxide ions.
II The hot agar solution in both test-tubes is to ensure the presence of oxygen in
the mixture.
III Potassium hexacyanoferrate(III) solution in test tube X is to detect the
corrosion of magnesium.
IV Potassium hexacyanoferrate(III) solution in test tube Y is to detect the
presence of ferrum(II) ions.
A I and IV only
B II and III only
C I, III, and IV only
D I, II, III, and IV
5/P1
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6. SPM 2003
PAPER 1
21 Figure 6 shows
Figure 6
Which of the following statements is true?
A From 0 to t1 heat energy is absorbed.
B From tl to t2 forces between particles are overcome.
C From t2 to t3 the kinetic energy of particles increased.
D From t3 to t4 the heat energy released is equal to the heat energy lost to the
surrounding
22. Sulphide and chloride ions have the same number of
[Proton number: S, 16; Cl, 17]
A charge
B. electrons
C neutrons
D protons
23 Element Y is below potassium in the same group in the Periodic Table.
Determine the formula of the product and the reactivity of Y with chlorine compared to
the reaction of potassium with chlorine.
Formula of the product Reactivity
A YC12 less reactive
B YC12 more reactive
C YC1 less reactive
D YC1 more reactive
6/P1
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7. SPM 2003
PAPER 1
24 Table 1 shows the melting points and types of particles of four substances.
Solid substance Melting point/oC Type of particle
G 80 Molecules
J 320 Ions
L 780 Ions
M 3000 atoms
Table 1
Based on Table 1, which solid substance becomes an electrolyte when it is heated to a
temperature of 350oC?
A G B J
C L D M
25 Figure 7 shows the set up of apparatus for the electrolysis of ferum(II) sulphate solution
What is formed at carbon electrode X?
A Ferrum
B Oxygen
C Sulphur dioxide
D Hydrogen gas
26 Which of the following shows the arrangement of atoms in an alloy?
A B
C D
7/P1
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8. SPM 2003
PAPER 1
27 The equation below shows a reaction to produce hydrogen gas.
2 HCl + Zn → ZnCl 2 + H2
Which of the following would increase the rate of production of hydrogen gas?
A Increase the time of reaction.
B Increase the volume of acid.
C Increase the size of granulated zinc.
D Increase the temperature of the mixture.
28 Below is an ionic equation.
X(s) + Y2+(aq) → X2+(aq) + Y(s)
Which of the following is true of the equation?
A Y2+ is oxidized.
B X is an oxidizing agent.
C X2+ is a reducing agent.
D X donates electrons to Y2+.
29 Fe3+ ion in solution can be converted to Fe2+ ions by adding zinc powder.
Which of the following can replace zinc powder in this reaction?
A Bromine water
B Potassium iodide solution
C Potassium hexacynaferrate(II) solution
D Acidified potassium manganate(VII) solution
30 Figure 8 shows an energy level diagram.
Energy
OH-(aq) + H+(aq)
ΔH = -57 kJmol-1
H2O
Figure 8
Based on Figure 8, it can be concluded that
A the heat of neutralization is -57 kJmol-1.
B 57 kJ of energy is needed for the reaction.
C the products of reaction contain more energy than the reactants.
D the temperature at the end of the reaction is lower than that at the beginning of
the reaction.
8/P1
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9. SPM 2003
PAPER 1
31 Figure 9 shows the structure of a soap ion.
Figure 9
Based on Figure 9, which of the following statements is true?
A Parts X and Y are soluble in water.
B Parts X and Y are soluble in grease.
C Part X is soluble in grease and part Y is soluble in water.
D Part X is soluble in water and part Y is soluble in grease.
32 Table 2 shows the proton number of elements P and Q.
Element proton number
P 3
Q 11
Table 2
Which of the following statements are true of the elements in Table 2?
I Q is more reactive than P.
II The atomic size of Q is bigger than P.
III Both elements P and Q can conduct electricity.
IV P and Q are in the same group in the Periodic Table.
A I and II only
B I and IV only
C II, III, and IV only
D I, II, III, and IV
33 Table 3 shows the results of an experiment for three chemical cells.
Negative
Chemical cell Metal pairs Cell voltage/V
terminal
X P and R R 1.9
Y R and S S 0.8
Z Q and R R 0.3
Table 3
Which of the following can be deduced from Table 3?
I The cell voltage is 1.6 V when P and Q are used as electrodes.
II The cell voltage is 1.1 V when P and S are used as electrode.
III Electrons flow from terminal Q to terminal S in the metal pair Q and S.
IV P functions as a positive terminal when it is paired with Q, R, or S in a cell.
A I and IV only
B II and III only
C I, II, and III only
D I, II, III, and IV
9/P1
SPM03

10. SPM 2003
PAPER 1
34 The information about two solutions is as follows:
Concentration of barium hydroxide solution = 0.5 mol dm-3
Concentration of aqueous ammonia = 0.5 mol dm-3
Which of the following statements are true based on the information?
I Aqueous ammonia is a weaker alkali than barium hydroxide solution.
II The pH value of barium hydroxide solution higher than aqueous ammonia.
III The degree of dissociation of barium hydroxide in water is higher than in
ammonia.
IV The concentration of OH- ions in barium hydroxide solution is higher
than in aqueous ammonia.
A I and III only
B III and IV only
C I, II, and III only
D I, II, III, and IV
35 An equation of a reaction is as follows:
2 Fe2+ + Cl2 → 2 Fe3+ + 2 Cl-1
green brown
In the reaction represented by the equation above, it was found that the change of colour
from green to brown was faster when the reactant mixture was heated.
This was due to the
I decrease in the activation energy.
II increase in the frequency of effective collision.
III Increase in the kinetic energy of ferrum(II) ions and chlorine molecules.
IV Increase in the frequency of collision between ferrum(II) ions and chlorine
molecules.
A I and II only
B II and III only
C I, III, and IV only
D II, III, and IV only
10/P1
SPM03

11. SPM 2003
PAPER 1
36 Which of the following are isomers of butene?
I
II
III
IV
A I and III only
B II and IV only
C I, II, and III only
D I, II, III, and IV
37 The equation below represents the reaction to extract aluminium from aluminium
oxide.
2 Al2O3 → 4A1 + 3O
What is the mass of aluminium that can be extracted from 102 g of aluminium oxide?
[Relative atomic mass: O, 16; Al, 27]
A 13.5 g
B 27.0 g
C 54.0 g
D 108.0 g
38 The equation above shows the action of heat on the carbonate salt of metal X.
XCO3 → XO + CO2
How many moles of XCO3 are needed to produce 4.0 g of oxide X?
[Relative atomic mass: C, 12; O, 16; X, 64]
A 0.03
B 0.05
C 0.08
D 0.09
11/P1
SPM03

12. SPM 2003
PAPER 1
39 In the Periodic Table, Y is below Z in the same group. If the proton number of atom
Z is 12, what is the electron configuration for atom Y?
A 2.8.2
B 2.8.6
C 2.8.8.2
D 2.8.8.6
40 The electron configuration of atom E is 2.8.7 and atom G has four valence electrons.
What
is the formula of the compound formed between E and G?
A GE2
B GE4
C G2E
D G4E
41 Sulphuric acid used as an electrolyte in a car battery has a concentration of 0.5 mol
dm-3.
How many moles of sulphuric acid are there in 100 cm3?
A 0.025
B 0.05
C 0.1
D 0.5
42 Figure 10 shows the set-up of apparatus for the titration of potassium hydroxide solution
with sulphuric acid.
Figure 10
What is the total volume of the mixture in the conical flask at the end point of the
titration in Figure 10?
A 10 cm3
B 20 cm3
C 30 cm3
D 40 cm3
12/P1
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13. SPM 2003
PAPER 1
43 Stainless steel used to make surgical scalpels contains 71.5% ferrum, 18.0% chromium,
8.0% nickel, and 2.5% other elements.
If the mass of a surgical scalpel is 60.0 g, what is the mass of ferrum in it?
A 4.8 g
B 10.8 g
C 42.9 g
D 71.5 g
44 Table 4 shows the total volume of gas collected at regular intervals in a reaction.
Time/s 0 30 60 90 120 150 180 210
Volume of gas /cm3 0 2.0 3.7 5.2 6.4 7.3 8.6 8.6
Table 4
What is the average rate of reaction in the second minute?
A 0.040 cm3 s-1
B 0.045 cm3 s-1
C 0.053 cm3 s-1
D 0.062 cm3 s-1
45 Which of the following hydrocarbons is most suitable to be used as cooking gas?
[Relative atomic mass: H, 1; C, 12]
A C3H6
B C4H8
C C4H10
D C6H6
46 Figure 11 shows an energy level diagram.
Energy
J(s) + T2+(aq)
AH = -220 kJ mol-1
J2+(aq) + T(s)
Figure 11
Based on Figure 11, what is the increase in temperature of the solution if excess J
powder is added to 50 cm3 of T salt solution 0.2 mol dm-3?
[Specific heat capacity of solution: 4.0 J g-1oC-1]
A 4.4°C
B 5.5°C
C 8.8°C
D 11.0°C
13/P1
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14. SPM 2003
PAPER 1
47 Which of the following quantities of substances contain 6 x 1022 molecules? [Relative
atomic mass: H, 1; C, 12; O, 16; Avogadro's Constant: 6 x 1023 mol-1]
I 1.8 g water
II 1.0 g hydrogen gas
III 3.2 g oxygen gas
IV 4.4 g carbon dioxide
A I and II only
B III and IV only
C I, III, and IV only
D I, II, III, and IV
48 The equation below represents the decomposition of hydrogen peroxide solution.
2 H2O2(aq) → 2 H2O(l) + O2(g)
Which of the following are produced when 1 mole of hydrogen peroxide is decomposed
completely?
[1 mole of gas occupies 24 dm3 at room condition;
Avagadro's Constant: 6.0 x 1023mol-1]
I 2 moles of water
II 12 dm3 of oxygen gas
III 3 x 1023 of oxygen molecules
IV 1.2 x 10 of water molecules
A I and III only
B I and IV only
C II and III only
D II and IV only
49 Figure 12 shows a set-up of apparatus to determine the heat of reaction.
Beginning of experiment End of experiment
Figure 12
Based on Figure 12 which of the following statements are true?
I The process of bonding occurs.
II Temperature increases during the reaction.
III The AH value in the reaction is positive.
IV The energy content of the products of reaction is higher than that of the
reactants.
A I and II only
B III and IV only
C I, II, and IV only
D I, II, III, dan IV
14/P1
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15. SPM 2003
PAPER 1
50 The equation below shows a displacement reaction and its heat of reaction.
Mg + Fe2+ → Mg2+ + Fe AH = -189 kJ mol-1
Which of the following statements are true about the reaction represented by the above
equation?
I Magnesium is oxidized.
II The reaction is exothermic.
III The temperature decreases during the reaction.
IV The heat released by reacting 0.2 mole of ferrum(II) ions is 37.8 kJ.
A I and II only
B II and IV only
C III and IV only
D I, II, and IV only
15/P1
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