O-LevelChemistryAcids, Bases & Salts5070/12 · May/June 2014 · Q31 Mark

The scheme shows a sequence of reactions starting from compound Y. What could the compound Y be?

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Aaluminium sulfate

Bcalcium carbonate

Ccopper(II) carbonate

Dzinc carbonate

✓ Correct answer

B: calcium carbonate

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Topic: Acids, Bases & Salts, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, May/June 2014 Paper 1 Variant 2, question 3.

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