O-LevelChemistryChemistry of the Environment5070/12 · May/June 2023 · Q321 Mark

Why is carbon used in water purification?

AIt acts as a filter to remove insoluble solids.

BIt adds oxygen to the water.

CIt disinfects the water.

DIt removes tastes and odours.

✓ Correct answer

D: It removes tastes and odours.

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Topic: Chemistry of the Environment, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, May/June 2023 Paper 1 Variant 2, question 32.

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