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A-LevelChemistryIntroduction to organic chemistry9701/12 · Oct/Nov 2023 · Q311 Mark

The formulae of three compounds are shown. C3H7CHO C2H5COCH3 CH2CHCH2CH2OH Only one of these compounds will decolourise bromine water. Only one of these compounds will produce a silver mirror with Tollens' reagent. Which row shows the correct results?

Adecolourises bromine water: C3H7CHO, forms a silver mirror with Tollens' reagent: C2H5COCH3
Bdecolourises bromine water: C2H5COCH3, forms a silver mirror with Tollens' reagent: C3H7CHO
Cdecolourises bromine water: CH2CHCH2CH2OH, forms a silver mirror with Tollens' reagent: C2H5COCH3
Ddecolourises bromine water: CH2CHCH2CH2OH, forms a silver mirror with Tollens' reagent: C3H7CHO

✓ Correct answer

D: decolourises bromine water: CH2CHCH2CH2OH, forms a silver mirror with Tollens' reagent: C3H7CHO

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About this question

Topic
Introduction to organic chemistry, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source
A-Level Chemistry, Oct/Nov 2023 Paper 1 Variant 2, question 31.

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