A-LevelChemistryEquilibria9701/12 · May/June 2012 · Q331 Mark

Concentrated sulfuric acid behaves as a strong acid when it reacts with water. H2SO4(l) + aq → H+(aq) + HSO4⁻(aq) The HSO4⁻ ion formed behaves as a weak acid. HSO4⁻(aq) ⇌ H+(aq) + SO4²⁻(aq) Which statements are true for 1.0 mol dm⁻³ sulfuric acid?

A1, 2 and 3 are correct

B1 and 2 only are correct

C2 and 3 only are correct

D1 only is correct

✓ Correct answer

D: 1 only is correct

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Topic: Equilibria, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source: A-Level Chemistry, May/June 2012 Paper 1 Variant 2, question 33.

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