A-LevelChemistryGroup 179701/12 · May/June 2017 · Q161 Mark

Element X reacts with cold, dilute, aqueous sodium hydroxide to form two different chlorine-containing products, Y and Z. What are the oxidation states of chlorine in Y and Z?

AY: 0, Z: +1

BY: 0, Z: +5

CY: -1, Z: +1

DY: -1, Z: +5

✓ Correct answer

C: Y: -1, Z: +1

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Topic: Group 17, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source: A-Level Chemistry, May/June 2017 Paper 1 Variant 2, question 16.

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