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WorksheetsIGCSEreview
Total questions: 25
Worksheet time: 23mins
What do the chemical symbols N2 and Ni represent?
A
B
C
D
Large hydrocarbons can be .….X….. to make smaller, more useful molecules. Small molecules can be …..Y….. to make long molecules.
What are X and Y?
A
B
C
D
Carbon is used in the extraction of some metals from their ores because
1 carbon forms strong alloys with metals,
2 carbon reacts with oxygen in the ore.
Which of these statements are correct?
1 only
2 only
Both 1 and 2
Neither 1 or 2
An increase in the world’s population increases the demand for food. Which industrial process helps to increase food production?
Chlorination of water
Fractional distillation of crude oil to form petrol
Production of ammonium sulphate
Recycling of glass bottles
A student uses the apparatus shown to find out how many different pigments are in leaves.
What is this separation method called?
Chromatography
Distillation
Filtration
Evaporation
Which of the following is a solid fossil fuel?
Wood
Methane
Coal
Oil
The diagrams show an investigation into the conditions needed for rusting of iron nails. The nails in tubes 1 and 2 rust within a few days.
Which conditions are required for rusting?
Air alone
Air and water
Salt and water
Water alone
An ice cube is gently warmed as shown. Which process is taking place?
Decomposition
Dissolving
Boiling
Melting
A solid has a giant structure. It does not conduct electricity but does so when it is dissolved in water. What could the solid be?
A
B
C
D
Limestone and common salt are important minerals. For which process are both minerals suitable starting materials?
Manufacture of alkalis
Manufacture of chlorine
Manufacture of fertilisers
Manufacture of hydrogen
Nitrogen from the air is used to manufacture the fertiliser ammonium sulphate. Why is a catalyst needed during this process?
Nitrogen from the air is not pure.
Nitrogen is a gas at room temperature.
Nitrogen is a non-metallic element.
Nitrogen reacts slowly.
Which diagram represents an alloy?
A
B
C
D
A measuring cylinder is used to measure the volume of a liquid. What is the volume of the liquid?
43 cm3
46 cm3
48 cm3
54 cm3
The diagram shows a sack containing a mixture of three minerals. Which element is not present in the mixture?
Cobalt
Copper
Iron
Tin
Heating a metal compound in a Bunsen flame turns the flame green. Which metal ion is present in the compound?
Calcium
Copper
Potassium
Sodium
Which process produces molecules with longer chains?
combustion of hydrocarbon
cracking
fractional distillation of crude oil
polymerisation
The table shows the name and formula of four metal ores. Which metal ores contain two different metals?
1 and 3 only
2 and 4 only
1, 2 and 4 only
2, 3 and 4 only
How may the compounds in chlorophyll be separated?
Filtration
Recrystallisation
Chromatography
Simple distillation
The table shows the results of adding three metals, X, Y and Z, to water and to dilute hydrochloric acid. What is the order of reactivity of the three metals? Most reactive first.
X > Y > Z
Y > X > Z
Y > Z > X
Z > Y > X
An element is in Group VI of the Periodic Table. What information does this give about the element?
the number of protons in the nucleus
the number of outer electrons
the reactivity of the element
the relative atomic mass of the element
Which process would show that crude oil is a mixture?
Combustion
Cracking
Fractional distillation
Neutralisation
Crude oil, salt and wood are important raw materials used in industry. Which of these raw materials is used to make alkali, paper and plastics?
A
B
C
D
The diagram shows apparatus used for electrolysis. Which row shows the correct labelling for the apparatus? Answers appear in the order X, Y, Z.
anode, cathode, electrolyte
electrolyte, cathode, anode
cathode, anode, electrolyte
electrolyte, anode, cathode
The diagram shows how limestone can be converted into useful products for industry. What are process P and product Q? Answers appear in the order P; Q.
combustion; an acid
combustion; an alkali
decomposition; an acid
decomposition; an alkali
A small amount of ammonia is present in a sample of hydrogen. What would be the results of tests on the mixture?
A
B
C
D
