O-LevelChemistryOrganic Chemistry5070/11 · May/June 2015 · Q341 Mark

Which statement is correct?

ACarboxylic acids contain the functional group -C(=O)H

BEthanoic acid will react and fizz when copper is added.

CEthanol will decolourise acidified potassium manganate(VII).

DThe structure of ethyl ethanoate is H₃C–C(=O)–O–CH₃

✓ Correct answer

C: Ethanol will decolourise acidified potassium manganate(VII).

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Topic: Organic Chemistry, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, May/June 2015 Paper 1 Variant 1, question 34.

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