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A-LevelChemistryGroup 179701/12 · Oct/Nov 2018 · Q171 Mark

Chlorine reacts with both hot and cold sodium hydroxide to form products containing chlorine. Cold sodium hydroxide forms sodium chlorate(X) and hot sodium hydroxide forms sodium chlorate(Y). X and Y are oxidation numbers. Which equation is correct?

AY=X-6
BY=X-4
CY=X+4
DY=X+6

✓ Correct answer

C: Y=X+4

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About this question

Topic
Group 17, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source
A-Level Chemistry, Oct/Nov 2018 Paper 1 Variant 2, question 17.

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