O-LevelChemistryMetals & Reactivity5070/11 · Oct/Nov 2016 · Q271 Mark

Which equation shows a reaction that will occur at room temperature and pressure?

ABr₂(aq) + 2NaCl(aq) → 2NaBr(aq) + Cl₂(aq)

BBr₂(aq) + 2NaI(aq) → 2NaBr(aq) + I₂(aq)

CI₂(aq) + 2NaCl(aq) → 2NaI(aq) + Cl₂(aq)

DI₂(aq) + 2NaBr(aq) → 2NaI(aq) + Br₂(aq)

✓ Correct answer

B: Br₂(aq) + 2NaI(aq) → 2NaBr(aq) + I₂(aq)

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Topic: Metals & Reactivity, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, Oct/Nov 2016 Paper 1 Variant 1, question 27.

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