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A-LevelChemistryElectrochemistry9701/12 · Oct/Nov 2025 · Q111 Mark

In which substance is the average oxidation number of sulfur the highest?

AS8
BNa2S4O6
CNa2S2O3
DSO2Cl2

✓ Correct answer

D: SO2Cl2

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About this question

Topic
Electrochemistry, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source
A-Level Chemistry, Oct/Nov 2025 Paper 1 Variant 2, question 11.

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