A-LevelChemistryElectrochemistry9701/12 · Feb/Mar 2021 · Q81 Mark

VO₂Cl reacts with NaI under acidic conditions. 2VO₂Cl + 2H₂SO₄ + 2NaI → VOCl₂ + VOSO₄ + I₂ + Na₂SO₄ + 2H₂O The oxidation state of Cl is −1 in VO₂Cl and in VOCl₂. Which row about this reaction is correct? vanadium iodine A is oxidised is oxidised B is oxidised is reduced C is reduced is oxidised D is reduced is reduced

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Avanadium is oxidised, iodine is oxidised

Bvanadium is oxidised, iodine is reduced

Cvanadium is reduced, iodine is oxidised

Dvanadium is reduced, iodine is reduced

✓ Correct answer

C: vanadium is reduced, iodine is oxidised

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Topic: Electrochemistry, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source: A-Level Chemistry, Feb/Mar 2021 Paper 1 Variant 2, question 8.

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