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A-LevelChemistryGroup 179701/12 · Oct/Nov 2022 · Q211 Mark

What is the oxidation state of the chlorine-containing species that kills bacteria in drinking water?

A−1
B+1
C+3
D+5

✓ Correct answer

B: +1

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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 2022 Paper 1 Variant 2, question 21.

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