O-LevelChemistryMetals & Reactivity5070/12 · Oct/Nov 2014 · Q281 Mark

Substance P reacts with dilute hydrochloric acid to produce a gas. This gas reduces substance Q. What are substances P and Q?

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Acopper, copper(II) oxide

Blead, lead(II) oxide

Cmagnesium, zinc oxide

Dzinc, copper(II) oxide

✓ Correct answer

D: zinc, copper(II) oxide

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Topic: Metals & Reactivity, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, Oct/Nov 2014 Paper 1 Variant 2, question 28.

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