O-LevelChemistryElectrolysis5070/11 · May/June 2011 · Q171 Mark

The equation shows what happens in a redox reaction between iron(II) chloride and chlorine gas. 2FeCl2 + Cl2 → 2FeCl3 Which equation describes the reduction process in this reaction?

A2Cl¯ → Cl2 + 2e¯

BCl2 + 2e¯ → 2Cl¯

CFe2+ → Fe3+ + e¯

DFe3+ + e¯ → Fe2+

✓ Correct answer

B: Cl2 + 2e¯ → 2Cl¯

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Topic: Electrolysis, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, May/June 2011 Paper 1 Variant 1, question 17.

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