A-LevelChemistryNitrogen and sulfur9701/12 · May/June 2017 · Q81 Mark

A reaction sequence is shown. 1 2 3 4 SO₂ SO₃ H₂SO₄ H₂S SO₂ In each stage of this sequence the sulfur is oxidised, reduced or neither oxidised nor reduced. Which row is correct?

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Aneither, oxidised, reduced, reduced

Boxidised, neither, reduced, reduced

Coxidised, neither, reduced, oxidised

Doxidised, oxidised, reduced, oxidised

✓ Correct answer

C: oxidised, neither, reduced, oxidised

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Topic: Nitrogen and sulfur, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source: A-Level Chemistry, May/June 2017 Paper 1 Variant 2, question 8.

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