A-LevelChemistryNitrogen and sulfur9701/12 · Feb/Mar 2018 · Q181 Mark

When burned, sulfur forms a gaseous product X which can be oxidised to produce a gas Y. Gas Y reacts with water to produce a product Z. Which row correctly shows the oxidation states of sulfur in X, Y and Z?

A–2 +4 +4

B–2 +4 +6

C+4 +6 +4

D+4 +6 +6

✓ Correct answer

D: +4 +6 +6

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Topic: Nitrogen and sulfur, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source: A-Level Chemistry, Feb/Mar 2018 Paper 1 Variant 2, question 18.

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