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WorksheetsIGCSE Coordinated Chemistry Workout 22
Total questions: 10
Worksheet time: 10mins
Some uses of alloys are shown.
Which statement about alloys is correct?
They are always stronger than the metals from which they are made.
They are made from metals because metals are poor electrical conductors.
They contain mixtures of compounds that contain metals.
They have different properties to the metals from which they are made.
The diagram shows an experiment on a liquid hydrocarbon.
Which change takes place?
combustion
cracking
fractional distillation
polymerisation
In which pair are both molecules unsaturated?
A
B
C
D
The diagram shows waste organic material decaying.
What is formed when the gas, methane, is burned?
carbon dioxide and water
carbon dioxide only
carbon monoxide
water only
The colours in an ink can be separated by chromatography.
Which diagram shows the correct way to set up the apparatus?
A
B
C
D
The positions of four elements are shown on the outline of part of the Periodic Table.
Which element forms an ion with a charge of 2+?
A
B
C
D
What are the products of the electrolysis of dilute sulfuric acid using inert electrodes?
hydrogen and oxygen
hydrogen and sulfur dioxide
oxygen and sulfur
oxygen and sulfur dioxide
Which change occurs in all exothermic reactions
Bubbles of gas are released from the mixture.
Light energy is produced.
The temperature of the mixture decreases.
The temperature of the mixture increases.
The diagram shows zinc reacting with sulfuric acid.
Which change does not increase the speed of the reaction?
adding a catalyst
increasing the concentration of sulfuric acid
increasing the temperature of sulfuric acid
reducing the surface area of zinc
Hydrogen and oxygen react explosively to form water.
Which words describe this reaction?
A
B
C
D
