WorksheetsIGCSE 0620 May/June 2016
Total questions: 40
Worksheet time: 40mins
In which changes do the particles move further apart?
W and X
W and Z
X and Y
Y and Z
In the chromatography experiment shown, which label represents the solvent front?
A
B
C
D
One of the instructions for an experiment reads as follows.
Quickly add 50cm3 of acid.
What is the best piece of apparatus to use?
A burette
a conical flask
a measuring cylinder
a pipette
Two statements about diamond are given.
1 Diamond has a giant three-dimensional covalent structure of carbon atoms.
2 Diamond is one of the hardest substances known.
Which is correct?
Both statements are correct and statement 1 explains statement 2.
Both statements are correct but statement 2 does not explain statement 1.
Statement 1 is correct but statement 2 is incorrect.
Statement 2 is correct but statement 1 is incorrect.
The table shows the electronic structure of four atoms. Which two atoms combine to form a covalent compound?
W and X
W and Y
X and Y
X and Z
An atom of element Q contains 19 electrons, 19 protons and 20 neutrons.
What is Q?
Calcium
Potassium
Strontium
Yttrium
Lithium is in Group I of the Periodic Table. Nitrogen is in Group V of the Periodic Table.
Lithium reacts with nitrogen to form the ionic compound lithium nitride.
What happens to the electrons when lithium atoms and nitrogen atoms form ions?
A
B
C
D
The equation shows the reaction between magnesium and sulfuric acid.
[Ar: H, 1; O, 16; Mg, 24; S, 32]
Mg + H2SO4 → MgSO4 + H2
In this reaction, which mass of magnesium sulfate is formed when 6g of magnesium react with excess sulfuric acid?
8
24
30
60
The diagram shows an electrical cable. Which statement about the substances used is correct?
The coating is plastic because it conducts electricity well.
The core is copper because it conducts electricity well.
The core is copper because it is cheap and strong.
The core is iron because it is cheap and strong.
What are the products at the electrodes when dilute sulfuric acid is electrolysed using inert electrodes?
A
B
C
D
The energy level diagram for the reaction between magnesium and hydrochloric acid is shown. Which statement about the reaction is not correct?
Energy is given out during the reaction.
The products are at a lower energy level than the reactants.
The reaction is endothermic.
The temperature increases during the reaction.
The diagram shows some properties that substances may have.
To which labelled part of the diagram does 235U belong?
A
B
C
D
A liquid X reacts with solid Y to form a gas.
Which two diagrams show suitable methods for investigating the rate (speed) of the reaction?
1 and 3
1 and 4
2 and 3
2 and 4
The results of two separate reactions between excess calcium carbonate and hydrochloric acid are shown. Which statement explains the differences between the reactions?
More calcium carbonate was used in the second reaction.
The same volume of more concentrated acid was used in the second reaction.
The second reaction was allowed to react for longer.
The temperature was higher in the second reaction.
The equations below all show redox reactions. Which oxide is oxidised in these reactions?
Fe2O3
CO
ZnO
NO
In which reaction is the colour change from blue to white?
heating hydrated cobalt(II) chloride
heating hydrated copper(II) sulfate
adding water to anhydrous cobalt(II) chloride
adding water to anhydrous copper(II) sulfate
Which statements are the properties of an acid?
1 reacts with ammonium sulfate to form ammonia
2 turns red litmus blue
A
B
C
D
Part of the Periodic Table is shown.
Which element forms an acidic oxide?
A
B
C
D
What is the correct sequence of steps for the preparation of a pure sample of copper(II) sulfate crystals from copper(II) oxide and sulfuric acid?
dissolving → crystallisation → evaporation → filtration
dissolving → evaporation → filtration → crystallisation
dissolving → filtration → crystallisation → evaporation
dissolving → filtration → evaporation → crystallisation
The following tests are carried out on an aqueous solution of salt X. What is X?
Aluminium nitrate
Ammonium sulfate
Chromium(III) nitrate
iron(II) nitrate
Where in the Periodic Table is the metallic character of the elements greatest?
A
B
C
D
Rubidium is a Group I metal.
Which statement about rubidium is not correct?
It has a higher melting point than lithium.
It has one electron in its outer shell.
It reacts vigorously with water.
It reacts with chlorine to form rubidium chloride, RbCl.
The table gives information about four elements, P, Q, R and S. Which elements could be transition elements?
P, Q and S
Q and S only
R and S only
S only
Part of the Periodic Table is shown.
Which element is a gas that does not form a compound with potassium?
A
B
C
D
Which property is not considered a typical metallic property?
good conductor of heat
low melting point
malleable (can be hammered into shape)
strong
Some chemical properties of three metals W, X and Y and their oxides are shown.
What is the order of reactivity of these metals, most reactive first?
W → Y → X
X → Y → W
Y → W → X
Y → X → W
Iron from a blast furnace is treated with oxygen and with calcium oxide to make steel.
Which substances in the iron are removed?
A
B
C
D
Copper is sometimes used to make cooking utensils.
Three properties of copper are given.
1 corrosion-resistant
2 good conductor of electricity
3 good conductor of heat
Which properties make copper a suitable metal for making cooking utensils?
1 and 3
1 only
2 and 3
2 only
The diagram shows an experiment to investigate how paint affects the rusting of iron.
A
B
C
D
A new planet has been discovered and its atmosphere has been analysed.
Which gases are present in the atmosphere of the planet in a higher percentage than they are in the Earth’s atmosphere?
carbon dioxide and oxygen
carbon dioxide only
nitrogen and oxygen
nitrogen only
Which of the following are tests for water?
1 It turns anhydrous copper(II) sulfate blue.
2 It boils at 100°C.
3 It turns anhydrous cobalt(II) chloride paper blue.
1, 2 and 3
1 and 2 only
1 and 3 only
2 and 3 only
Sulfur dioxide, carbon monoxide and oxides of nitrogen are common gaseous pollutants found in the air.
Which pollutants contribute to acid rain?
carbon monoxide and sulfur dioxide
oxides of nitrogen and sulfur dioxide
oxides of nitrogen only
sulfur dioxide only
Which compound is not used as a fertiliser?
ammonium phosphate
ammonium sulfate
calcium carbonate
potassium nitrate
Lime (calcium oxide) is used to treat waste water from a factory.
Which substance is removed by the lime?
ammonia
sodium chloride
sodium hydroxide
sulfuric acid
The diagram shows the separation of petroleum into fractions.
A
B
C
D
Which compound is not an alkane, CnH2n+2?
CH3CH2CH2CH3
(CH3)2CHCH3
CH3CHCHCH3
(CH3)3CH
A hydrocarbon W burns to form carbon dioxide and water.
W decolourises bromine water.
What is the name of W and what is its structure?
A
B
C
D
Which term describes the formation of ethanol from glucose?
cracking
distillation
fermentation
polymerisation
Ethene forms an additional polymer as shown. Which terms describe this polymer?
a saturated compound called poly(ethane)
a saturated compound called poly(ethene)
an unsaturated compound called poly(ethane)
an unsaturated compound called poly(ethene)
Which statement about carboxylic acids is not correct?
Aqueous ethanoic acid has a pH below pH 7.
They contain the functional group –COOH.
They produce carbon dioxide when reacted with a metal carbonate.
Methyl orange turns yellow in aqueous ethanoic acid.
