1.
2.
Which of the following substances is a nonconductor when solid, but becomes a good
conductor on melting?
A. argon
B. potassium
C. potassium fluoride
D. tetrachloromethane
Which of the following covalent gases does
not react with water forming ions?
A. HCl
B. SO2
C. NH3
D. CH4
3.
An iron nail is covered with water. Which of
the following would not increase the rate at
which the iron nail corrodes?
A. adding some sodium sulphate to the water
B. adding some glucose to the water
C. attaching copper wire to the nail
D. passing carbon dioxide through the water
4.
Naturally occurring nitrogen consists of two
isotopes 14N and 15N. How many different
types of nitrogen molecules will occur in the
air?
A. 1
B. 2
C. 3
D. 4
5.
6.
Which covalent gas dissolves in water to
form an alkali?
A. HCl
B. CH4
C. SO2
D. NH3
When copper is added to a solution
containing zinc nitrate and silver nitrate
A. deposits of both zinc and silver form
B. a deposit of zinc forms
C. a deposit of silver forms
D. no new deposit forms
7.
Hydrochloric acid reacts with magnesium
according to the following equation
Mg(s) + 2H+(aq)
Mg2+(aq) + H2(g)
What volume of 4 moll-1 hydrochloric acid
reacts with 0.1 mol of magnesium?
A. 25 cm3
B. 50 cm3
C. 100 cm3
D. 200 cm3
8.
Two identical samples of zinc were added to
an excess of two solutions of sulphuric acid,
concentrations 2 moll-1 and 1 moll-1
respectively. Which of the following would
have been the same for both samples?
A. the total mass lost
B. the total time for the reaction
C. the initial reaction rate
D. the average rate of evolution of gas
9.
A negatively charged particle with electronic
configuration 2,8 could be
A. a fluoride ion
B. a sodium atom
C. an aluminium ion
D. a neon atom
10. 20cm3 of 0.3 moll-1 sodium hydroxide
solution can be exactly neutralised by
A. 20cm3 of 0.3 moll-1 sulphuric acid
B. 20cm3 of 0.6 moll-1 sulphuric acid
C. 10cm3 of 0.6 moll-1 sulphuric acid
D. 10cm3 of 0.3 moll-1 sulphuric acid
11. A mixture of sodium bromide and sodium
sulphate is known to contain 5 mol of sodium
and 2 mol of bromide ions. How many moles
of sulphate ions are present?
A. 1.5
B. 2.0
C. 2.5
D. 3.0
12. Which compound conducts electricity when
molten?
A. calcium chloride
B. nitrogen chloride
C. phosphorus chloride
D. silicon chloride
13. Which pair of solutions is most likely to
produce a precipitate when mixed?
A. magnesium nitrate and sodium chloride
B. magnesium nitrate and sodium sulphate
C. silver nitrate and sodium chloride
D. silver nitrate and sodium sulphate
20. Which compound contains both a halide ion
and a transition metal ion?
A. iron oxide
B. silver bromide
C. potassium permanganate
D. copper iodate
14. What volume of 0.4 moll-1 sodium hydroxide
solution is needed to neutralise 50cm3 of 0.1
moll-1 sulphuric acid?
A. 25 cm3
B. 50 cm3
C. 100 cm3
D. 250 cm3
21. In which of the following compounds do
both ions have the same electron
arrangement as argon?
A. magnesium oxide
B. sodium sulphide
C. calcium bromide
D. calcium sulphide
15. Particles with the same electron arrangement
are said to be isoelectronic. Which compound
contains ions which are isoelectronic?
A. Na2O
B. LiF
C. CaO
D. CaBr2
22. A carbohydrate did not give a colour change
either when added to iodine or when warmed
with Benedict’s solution. The carbohydrate
could be
A. maltose
B. sucrose
C. glucose
D. starch
16. Solutions of barium chloride and silver
nitrate are mixed together. The reaction that
takes place is an example of
A. neutralisation
B. precipitation
C. dehydration
D. oxidation
17. Which of the following oxides forms a
solution with a pH greater that 7 when added
to water?
A. carbon dioxide
B. copper(II)oxide
C. sulphur dioxide
D. sodium oxide
18. What is the relative formula mass for calcium
nitrate?
A. 82
B. 102
C. 142
D. 164
19. A hydrocarbon contains 88.9% carbon and
11.1% hydrogen. Which of the following
could be the molecular formula for the
hydrocarbon?
A. C4H4
B. C4H6
C. C4H8
D. C4H10
23. Which of the following procedures would be
best for obtaining sodium chloride from a
mixture of sodium chloride and silver
chloride?
A. add water, filter, collect residue
B. add water, filter, evaporate filtrate
C. add hydrochloric acid, filter, collect
residue
D. add hydrochloric acid, filter, evaporate
residue
24. Which gas would react with an acid solution?
A. SO2
B. NH3
C. CO2
D. CH4
25. The percentage of carbon by mass in pentane
is
A. 85.7
B. 83.3
C. 81.8
D. 29.4
26. When a certain aqueous solution is diluted,
its conductivity decreases but its pH remains
constant. It could be
A. ethanoic acid
B. sodium chloride
C. sodium hydroxide
D. nitric acid
27. In which of the following structures would
the nails corrode before the roof itself?
A. zinc roof with iron nails
B. iron roof with copper nails
C. zinc roof with copper nails
D. copper roof with iron nails
28. Different isotopes of the same element have
identical
A. nuclei
B. electron arrangements
C. numbers of neutrons
D. mass numbers
29. An element was burned in air. The product
was added to water, producing a solution
with a pH less than 7. The element could be
A. hydrogen
B. sodium
C. tin
D. carbon
30. When a series of electric sparks was passed
through a flask of air, a chemical reaction
occurred producing a gas. If a little water was
added to the flask then the gas
A. would dissolve to form an acid
B. would dissolve to form an alkali
C. would dissolve to form a neutral solution
D. would not dissolve
31. A white powder when mixed with sodium
hydroxide and heated strongly gave off an
alkaline gas. The white powder could be
A. calcium oxide
B. ammonium chloride
C. potassium carbonate
D. zinc nitrate
32. Four metals W, X, Y and Z and their
compounds were tested as described.
(i)
(ii)
Only X, Y and Z reacted with dilute
hydrochloric acid;
The oxides of W, X and Y were
reduced to the metal when heated
with carbon powder. The oxide of Z
did not react;
A displacement reaction occurred
when X was added to an aqueous
solution of the nitrate of Y.
(iii)
The correct order of reactivity of these metals
(the most reactive first) is
A.
B.
C.
D.
W, Y, X, Z
W, X, Y, Z
Z, X, Y, W
Z, Y, X, W
33. Which of the following statements is not true
of isotopes
A. their electron arrangements are the same
B. the masses of their nuclei are different
C. their numbers of protons are different
D. their nuclear charges are the same
34. A pupil tried to verify the composition of
copper(II) oxide by weighing some copper
foil, heating it in air, and weighing the
product. The results are likely to be
unreliable because
A. the copper does not oxidise completely
B. some of the copper(II)oxide would
evaporate
C. the copper would melt and vapourise
D. copper does not combine with oxygen on
heating
35. In which of the following does oxidation of
iron take place?
A. the addition of silver to iron(II)sulphate
solution
B. the addition of iron to dilute sulphuric
acid
C. the addition of zinc to iron(II)sulphate
solution
D. the addition of iron to freshly boiled
water
36. Which of the following pairs would give a
neutral solution when mixed?
A. 5 cm3 of 0.1 moll-1 HCl and 10cm3 of 0.1
moll-1 NaOH
B. 5 cm3 of 0.1 moll-1 HCl and 10cm3 of 0.1
moll-1 KOH
C. 10 cm3 of 0.1 moll-1 HNO3 and 10cm3 of
0.1 moll-1 NaOH
D. 10 cm3 of 0.1 moll-1 H2SO4 and 10cm3 of
0.1 moll-1 NaOH
37. Which of the following would be expected to
react together?
A. copper and zinc sulphate solution
B. tin and mercury(II)chloride solution
C. silver and dilute sulphuric acid
D. lead and iron(II)sulphate
38. How is a very reactive metal likely to be
obtained from its ore?
A. The pure metal would be found naturally
B. The ore would be roasted in air
C. The ore would be melted and
electrolysed
D. The ore would be heated with carbon
39. Which one of the following statements must
be correct concerning the number of neutrons
in an atom of any element?
A. it is the same as the atomic number of the
element
B. it is the same for all atoms of the element
C. it is less than the mass number of any
atom of the element
D. it is less than the number of electrons in
an atom of the element
40. Dilute sulphuric acid (2 moll-1) is dropped
onto a mixture of magnesium and
magnesium carbonate. Which one of the
following would be the most likely
composition of the gas evolved?
A. carbon dioxide only
B. hydrogen only
C. hydrogen and carbon dioxide
D. carbon dioxide and sulphur dioxide