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WorksheetsCambridge IGCSE Chemistry Quiz
Total questions: 41
Worksheet time: 21mins
Which process happens when water vapour changes to rain?
boiling
condensing
evaporating
freezing
The diagrams show the arrangement of particles in three different states of matter. Which row describes the change in energy of the particles and in particle motion for the given change in state?
1 → 2 decreases decreases
2 → 1 decreases increases
3 → 1 increases increases
1 → 3 increases decreases
An atom of element Q contains 19 electrons, 19 protons and 20 neutrons. What is Q?
calcium
potassium
strontium
yttrium
Which part of an atom has a relative mass of 1 and a relative charge of 0?
electron
neutron
nucleus
proton
Which row identifies the number of electrons, neutrons and protons in a particle which is an isotope of B?
5 5 5
5 6 5
6 5 6
6 6 6
Which statements about potassium iodide are correct?
1 and 3
1 only
2 and 3
2 only
Which substances contain one or more shared pairs of electrons?
argon
methane
iron(III) oxide
chlorine
Which substance has a giant covalent structure at room temperature and pressure?
ammonia
carbon dioxide
diamond
water
Which row shows the correct formula for the named substance?
cobalt(II) chloride
sodium carbonate
xenon
ammonium sulfate
The equation shows the thermal decomposition of magnesium carbonate. Which mass of magnesium oxide is formed when 21.0 g of magnesium carbonate is completely decomposed?
1.9 g
4.0 g
10.0 g
40.0 g
Concentrated aqueous sodium chloride is electrolysed using inert electrodes. What is the main product formed at the positive electrode (anode)?
chlorine
hydrogen
oxygen
sodium
A hydrogen–oxygen fuel cell uses 630 dm3 of oxygen. What is the minimum volume of clean, dry air needed to provide this volume of oxygen?
788 dm3
808 dm3
3000 dm3
3316 dm3
Three statements about energy changes in chemical reactions are listed. Which statements are correct?
1 and 2
1 only
2 and 3
3 only
When a small piece of a Group I metal is placed into a large beaker of cold water, a reaction occurs. Which statements about this reaction describe a physical change?
1 and 3
1 and 4
2 and 3
2 and 4
The equation for the decomposition of hydrogen peroxide is shown. Which statement about the catalyst is correct?
The catalyst makes the reaction more exothermic.
The mass of catalyst is the same before and after the reaction.
The catalyst increases the final volume of oxygen produced.
All of the catalyst is used up in the reaction.
The equation for the reaction between copper(II) oxide and carbon is shown. Which statement about this reaction is correct?
CuO is reduced.
CO2 is oxidised.
Cu is oxidised.
C is reduced.
Which row gives the colours observed when thymolphthalein and methyl orange are added separately to the named solution?
dilute HCl colourless yellow
dilute HCl blue red
aqueous NaOH colourless red
aqueous NaOH blue yellow
A mixture of two substances, R and S, is heated gently. What are R and S?
a basic oxide ammonium chloride
a basic oxide sodium nitrate
an acidic oxide ammonium chloride
an acidic oxide sodium nitrate
Which reactants are used to make the salt copper(II) sulfate?
dilute acid + alkali
dilute acid + metal carbonate
dilute acid + metal
dilute acid + non-metal oxide
Which statement about the Periodic Table is correct?
The elements are arranged in order of increasing relative atomic mass.
The reactivity of the elements in Group I and in Group VII increases as the groups are descended.
Elements in the same period have similar chemical properties.
Elements in Group II form ions with a 2+ charge.
Part of the Periodic Table is shown. Which element shows the most metallic character?
A
B
C
D
E is an element from Group I of the Periodic Table. What is the identity of E?
lithium
potassium
rubidium
francium
An equation for the displacement reaction between aqueous halogen, X2, and aqueous halide ions, Y–, is shown. Which row identifies X2 and Y– and explains why the reaction takes place?
chlorine iodide chlorine is less reactive than iodine
chlorine iodide chlorine is more reactive than iodine
iodine chloride chlorine is less reactive than iodine
iodine chloride chlorine is more reactive than iodine
Some information about an element is shown. What is the position of this element in the Periodic Table?
Group I
Group VII
Group VIII
transition elements
The table shows the observations when four metals, Q, R, S and T, are added separately to cold water and to dilute hydrochloric acid. Which row gives the order of reactivity of the metals?
S Q R T
T R Q S
S R Q T
T Q R S
gives the order of reactivity of the metals?
least
reactive
reactive
most
A S Q R T
Magnesium is reacted separately with dilute sulfuric acid and with steam. Which row correctly identifies if hydrogen is formed as a product in each reaction?
reaction with dilute sulfuric acid reaction with steam
A 1 = hydrogen is formed
B 1 = hydrogen is not formed
C 2 = hydrogen is formed
D 2 = hydrogen is not formed
Which statements about aluminium are correct? 1 It is more reactive than calcium. 2 The main ore of aluminium is bauxite. 3 It can be extracted from its oxide using carbon. 4 Brass is an alloy of aluminium and copper.
A 1 and 2
B 1 and 3
C 2 only
D 3 and 4
Which rows identify a type of steel that is suitable to make cutlery?
A 1 and 2
B 1 only
C 2 and 3
D 3 only
What happens to the water level in tubes P and Q?
A rises falls
B no change rises
C falls rises
D no change no change
Which two compounds would provide all three of these elements?
A ammonium nitrate and calcium phosphate
B ammonium nitrate and potassium sulfate
C potassium nitrate and calcium phosphate
D potassium phosphate and potassium sulfate
Which substances can be used to detect the presence of water?
A 1 and 2
B 1 and 3
C 2 and 4
D 3 and 4
What is produced by the incomplete combustion of methane?
A carbon monoxide
B hydrogen
C lead compounds
D sulfur dioxide
Which row identifies compounds in the same homologous series?
A different different
B different same
C similar different
D similar same
Which row identifies the substance that reacts with Z and describes the type of reaction that occurs?
A chlorine addition
B chlorine substitution
C steam addition
D steam substitution
Which list shows the fractions obtained from the fractional distillation of petroleum, in order of increasing boiling point?
A bitumen → diesel oil → fuel oil → lubricating oil
B diesel oil → gasoline → naphtha → kerosene
C gasoline → naphtha → kerosene → diesel oil
D kerosene → lubricating oil → naphtha → refinery gas
Which statements are correct about cracking of larger alkane molecules?
A 1, 2 and 3
B 1 and 2 only
C 1 and 3 only
D 2 and 3 only
Which words describe ethene?
A 1 and 2
B 1 and 3
C 2 and 4
D 3 and 4
Which piece of apparatus is most suitable for measuring 25.00 cm3 of dilute hydrochloric acid accurately?
A beaker
B measuring cylinder
C burette
D dropping pipette
Which separation technique is used to remove the excess solid magnesium oxide after the reaction finishes?
A chromatography
B crystallisation
C distillation
D filtration
Which row shows the correct set of results for the named aqueous metal nitrate?
A sodium nitrate no visible change white precipitate yellow flame
B copper(II) nitrate blue precipitate no visible change blue-green flame
C barium nitrate white precipitate no visible change blue-green flame
D calcium nitrate no visible change white precipitate yellow flame
