O-LevelChemistryMetals & Reactivity5070/11 · May/June 2020 · Q181 Mark

Pieces of zinc are added to aqueous copper(II) sulfate. Cu²⁺(aq) + Zn(s) → Zn²⁺(aq) + Cu(s) Which statement is correct?

ACu²⁺(aq) is oxidised to Cu(s) by gaining electrons.

BCu²⁺(aq) is reduced to Cu(s) by losing electrons.

CZn(s) is oxidised to Zn²⁺(aq) by losing electrons.

DZn(s) is reduced to Zn²⁺(aq) by gaining electrons.

✓ Correct answer

C: Zn(s) is oxidised to Zn²⁺(aq) by losing electrons.

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Topic: Metals & Reactivity, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, May/June 2020 Paper 1 Variant 1, question 18.

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