1. The diagram shows the structure of two forms, P and Q, of a solid element.

What are suitable uses of P and Q, based on their structures?

Use of Solid P Use of Solid Q

A drilling drilling
B drilling lubricating
C lubricating drilling
D lubricating lubricating

2. Element V forms an acidic, covalent oxide.

Which row in the table shows how many electrons there could be in the outer shell of an
atom of V?

1 2 3 4
A ✔ X X X
B ✔ ✔ X X
C X X X ✔
D X X ✔ ✔

3. Which statement describes the trends going down Group VII of the Periodic Table?

A The boiling point and melting point both decrease.

B The boiling point and melting point both increase.
C The boiling point decreases but the melting point both increases.
 D The boiling point increases but the melting point both decreases.

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4. The reactions shown may occur in the air during a thunder storm.

N2 + O2 ——> 2 NO
2NO + O2 ——> 2 NO
NO + O3 ——> NO + O2

Which lines shows what happens to the reactant molecule in each of these reactions?

N2 NO O3
A oxidised oxidised oxidised
B oxidised oxidised reduced
C reduced reduced oxidised
D reduced reduced reduced

5. An iron nail is placed in a closed test - tube, containing gas L.

What is gas L?

A Carbon dioxide
B Hydrogen
C Nitrogen
D Oxygen
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6. Which statements are correct?

1 Carbon monoxide is responsible for the production of ‘acid rain’.

2 Oxides of nitrogen are present in car exhausts.
3 Sulphur dioxide can be produced by the combustion of fossil fuels.

A 1 and 2 only
B 1 and 3 only
C 2 and 3 only
D 1, 2 and 3

7. Aqueous lead (II) nitrate and aqueous potassium iodide are added to the dish

containing water, as shown.

A yellow precipitate forms after a few minutes.

Which process occurs before the precipitate forms?

A Diffusion
B Distillation
C Fermentation
D Filteration
8. For each atom of carbon present in a molecule, there is an equal number of atoms of
oxygen but twice as many atoms of hydrogen.

What is the formula of the molecule?

A C2H2O2 B C2H2O4 C C2H4O2 D C2H6O

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9. When blue coper (II) sulphate is heated, a white solid and water are formed.

The white solid turns blue and gives out heat when water is added to it.

Which terms describe the blue copper (II) sulphate and the reactions?

The blue copper (II) sulphate is Reaction

A A mixture Can be reversed
B A mixture Cannot be reversed
C Hydrated Can be reversed
D Hydrated Cannot be reversed

10. The table gives information about four elements.

Which element is a transition element?

Color of element Electrical conductivity of Color of oxide

element
A Black High Colorless
B Colorless Low White
C Grey High Red
D Yellow Low Colorless

11. The symbols of two atoms may be written as shown.

Which statement about these atoms is correct?

 A They are different elements because they have different numbers of neutrons.
B They are different elements because they have different numbers of protons.
C They are isotopes of the same element because they have the same nucleon
number.
D They are isotopes of the same element because they have the same proton
number.

12. A student investigates the rate of reaction between marble chips and hydrochloric acid.

The loss in mass of the reaction flask is measured.

The graph shows the

result of two

experiments, P and Q.

Which change explains the difference between P and Q?

A A catalyst is added in P.
B A higher temperature is used in P.
C Bigger marble chips are used in Q.
 D Hydrochloric acid is more concentrated in Q

13. Solutions of a halogen and a sodium halide are mixed.

Which mixture darkens in colour because a reaction occurs?

A Bromine and sodium chloride

B Bromine and sodium fluoride
C Chlorine and sodium fluoride
D Chloride and sodium iodide

14.
In

which changes do the particles move further apart?

A W and X B W and Z C X and Y D Y and Z

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15. Calcium carbonate was reacted with hydrochloric acid in a conical flask. The flask was
placed on a balance and the mass of the flask and contents was recorded as the reaction
proceeded.
During the reaction, carbon dioxide was given off.
The reaction was carried out at two different temperatures.
Which row is correct?

Change in mass Temperature at which mass changed

more quickly
A Decrease Higher temperature
B Decrease Lower temperature
C Increase Higher temperature
 D Increase Lower temperature

16. The red colour in some pottery glazes may be formed as a result of the reactions
shown.

CuCO3 ——> CuO + CO2

CuO + SnO ——> Cu + SnO2
The equations show that ..1.. is oxidised and ..2.. is reduced.
Which substance correctly complete gaps 1 and 2 in the above sentence?

1 2
A CO2 SnO2

B CuCO3 CuO

C CuO SnO

D SnO CuO

17. A test - tube containing damp iron wool is inverted in water.

After three days, the water level inside the
test - tube has risen.
Which statement explains this rise?

A Iron oxide has been formed

B Iron wool has been reduced
C Oxygen has been formed
D The temperature of the water has risen

18. In the diagrams, circles of different sizes represent atoms of different elements.

Which diagram represents hydrogen chloride gas?

19. What is the relative molecular mass (Mr) of HNO3 ?

A 5 B 31 C 32 D 63

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20. Three processes are listed.
Burning methane in air
Radioactive decay of 235U
Reacting hydrogen with oxygen

Which statements about these processes are correct?

1 Hydrogen and methane are being used as fuels

 2 All the processes involve oxidation
3 All the processes are used to produce energy.

A 1 and 2 only B 1 and 3 only C 2 and 3 only D 1, 2 and 3

21. The equation for the effect of heat on hydrated sodium carbonate is as shown.

Na2CO3.10H2O (s) ⇌ Na2CO3. (s) + 10H2O (g)

Statements made by four students about the reaction are given.

P Anhydrous sodium carbonate is formed

Q Steam is formed
R There is a cooler change from blue to white
S The reaction is reversible
Which students’ statements are correct?

A P, Q and R only
B P, Q and S only
C Q, R and S only
D P, Q, R and S

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22. The apparatus shown can be used to measure the rate of some chemical reactions.
For which two reactions would the apparatus be suitable?

Reaction 1 AgNO3 (aq) + HCl (aq) —> AgCl (s) + HNO3 (aq)
Reaction 2 2H2O2 (aq) —> 2H2O (l) + O2 (g)
Reaction 3 MgO (s) + 2HCl (aq)—> MgCl2 (aq) + H2O (l)
Reaction 4 ZnCO (s) + 2HCl (aq) —> ZnCl2 (aq) + CO2 (g) + H2O (l)
A 1 and 2 B 1 and 3 C 2 and 4 D 3 and 4

23. The table shows the structure of different atoms and ions.

Particle Proton Nucleon Number of Number of Number of

number number protons neutrons electrons
Mg 12 24 12 W 12
Mg2+ X 24 12 12 10
F 9 19 9 Y 9
[F] − 9 19 9 10 Z
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What are the values of W, X, Y and Z?

W X Y Z
A 10 10 9 9
B 10 12 10 9
C 12 10 9 10
D 12 12 10 10

24. The equations below all show redox reactions.

Fe2O3 + 3 CO —> 2 Fe + 3CO2
2 ZnO + C —> 2 Zn + CO2
Fe2O3 + 2 Al —> Al2O3 + 2 Fe
2 CO + 2 NO —> 2 CO2 + N2
Which oxide is oxidised in these reactions ?

A Fe2O3 B CO C ZnO D NO

25. The diagram shows and experiment

to find the formula of magnesium
oxide.

Which piece of apparatus would be needed in addition to those shown?

A A balance
B A measuring cylinder
C A spatula
D A thermometer

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