O-LevelChemistryChemistry of the Environment5070/11 · May/June 2020 · Q321 Mark

Sea water is not safe to drink. It can be converted into drinkable water by desalination. What does desalination involve?

Aadding chlorine to kill bacteria

Bboiling the water to sterilise it

Cremoving the salt by filtration

Dseparating the water by distillation

✓ Correct answer

D: separating the water by distillation

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Topic: Chemistry of the Environment, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, May/June 2020 Paper 1 Variant 1, question 32.

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