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O-LevelChemistryMetals & Reactivity5070/11 · Oct/Nov 2019 · Q271 Mark

Metal carbonates decompose when heated. Which carbonate is most stable to heat?

Acalcium carbonate

Bcopper(II) carbonate

Clead(II) carbonate

Dzinc carbonate

✓ Correct answer

A: calcium carbonate

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About this question

Topic: Metals & Reactivity, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, Oct/Nov 2019 Paper 1 Variant 1, question 27.

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