O-LevelChemistryChemistry of the Environment5070/12 · Oct/Nov 2023 · Q401 Mark

The results of some tests on polluted river water are shown. Which metal ion must be present in the water?

AAl3+

BCa2+

CFe2+

DZn2+

✓ Correct answer

A: Al3+

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Topic: Chemistry of the Environment, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, Oct/Nov 2023 Paper 1 Variant 2, question 40.

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