A-LevelChemistryElectrochemistry9701/12 · Feb/Mar 2024 · Q111 Mark

One of the reactions in the rechargeable lead/acid battery is shown. Pb(s) + PbO₂(s) + 4H⁺(aq) + 2SO₄²⁻(aq) → 2PbSO₄(s) + 2H₂O(l) Which statement about this reaction is correct?

ALead is both oxidised and reduced.

BLead is neither oxidised nor reduced.

CLead is oxidised only.

DLead is reduced only.

✓ Correct answer

A: Lead is both oxidised and reduced.

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Topic: Electrochemistry, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source: A-Level Chemistry, Feb/Mar 2024 Paper 1 Variant 2, question 11.

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