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O-LevelChemistryElectrolysis5070/11 · Oct/Nov 2019 · Q121 Mark

Molten sodium chloride is electrolysed. Which equation correctly shows the reaction that occurs at the cathode?

A2Cl + 2e Cl2

B2C1 2e → Cl2

CNa+ + e → Na

DNa+ e Na

✓ Correct answer

C: Na+ + e → Na

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About this question

Topic: Electrolysis, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, Oct/Nov 2019 Paper 1 Variant 1, question 12.

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