O-LevelChemistryChemistry of the Environment5070/11 · May/June 2010 · Q301 Mark

Why is carbon used in the purification of drinking water?

AIt desalinates the water.

BIt disinfects the water.

CIt filters out solids.

DIt removes tastes and odours from the water.

✓ Correct answer

D: It removes tastes and odours from the water.

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Topic: Chemistry of the Environment, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, May/June 2010 Paper 1 Variant 1, question 30.

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