A-LevelChemistryElectrochemistry9701/12 · Oct/Nov 2018 · Q81 Mark

Ammonium metavanadate, NH4VO3, can be used to make a solution containing VO2Cl, which contains chloride ions. What is the change in the oxidation number of vanadium in this reaction?

A-1

C+1

D+2

✓ Correct answer

B: 0

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Topic: Electrochemistry, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source: A-Level Chemistry, Oct/Nov 2018 Paper 1 Variant 2, question 8.

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