O-LevelChemistryChemistry of the Environment5070/11 · Oct/Nov 2015 · Q311 Mark

The flow chart shows how impure water can be treated to produce drinkable water. What is not removed from the water by this process?

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Aclay particles

Bmicrobes

Cnitrates

Dodours

✓ Correct answer

C: nitrates

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Topic: Chemistry of the Environment, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, Oct/Nov 2015 Paper 1 Variant 1, question 31.

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