O-LevelChemistryChemistry of the Environment5070/11 · Oct/Nov 2016 · Q321 Mark

The table shows treatments used for drinking water supplies and reasons for using those treatments. Which row is correct?

Amethod of water treatment: chlorination, reason: removes tastes

Bmethod of water treatment: desalination, reason: removes solids

Cmethod of water treatment: filtration, reason: removes salt

Dmethod of water treatment: use of carbon, reason: removes odours

✓ Correct answer

D: method of water treatment: use of carbon, reason: removes odours

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Topic: Chemistry of the Environment, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, Oct/Nov 2016 Paper 1 Variant 1, question 32.

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