O-LevelChemistryElectrolysis5070/12 · May/June 2021 · Q141 Mark

Molten sodium chloride is electrolysed. Which change occurs at the cathode?

ASodium ions are oxidised.

BSodium ions are reduced.

CChloride ions are oxidised.

DChloride ions are reduced.

✓ Correct answer

B: Sodium ions are reduced.

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Topic: Electrolysis, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, May/June 2021 Paper 1 Variant 2, question 14.

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