O-LevelChemistryChemistry of the Environment5070/11 · May/June 2014 · Q291 Mark

Which of these processes can be used to purify water containing insoluble impurities? 1 chlorination, 2 desalination, 3 distillation, 4 filtration

A1 and 2

B2 and 3

C3 and 4

D4 only

✓ Correct answer

C: 3 and 4

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Topic: Chemistry of the Environment, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, May/June 2014 Paper 1 Variant 1, question 29.

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