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A-LevelChemistryAnalytical techniques9701/12 · Oct/Nov 2018 · Q271 Mark

Compound X has the empirical formula C2H3O. Compound X reacts with 2,4-dinitrophenylhydrazine reagent to give an orange precipitate and also decolourises warmed acidified potassium manganate(VII) solution. What could be the identity of X?

This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.

A[Diagram of CH3COCH2OH]
B[Diagram of CH3CH(OH)CHO]
C[Diagram of HOCH2COCH2OH]
D[Diagram of HOCH2CH2COOH]

✓ Correct answer

A: [Diagram of CH3COCH2OH]

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About this question

Topic
Analytical techniques, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source
A-Level Chemistry, Oct/Nov 2018 Paper 1 Variant 2, question 27.

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