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A-LevelChemistryCarbonyl compounds9701/12 · Oct/Nov 2010 · Q221 Mark

When ethanal, CH₃CHO, reacts with HCN and the organic product is hydrolysed by aqueous acid, organic compound Y is formed. When propanal, C₂H₅CHO, is heated under reflux with acidified potassium dichromate(VI), organic compound Z is formed. What is the difference in relative molecular mass of compounds Y and Z?

A12
B14
C16
D17

✓ Correct answer

C: 16

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About this question

Topic
Carbonyl compounds, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source
A-Level Chemistry, Oct/Nov 2010 Paper 1 Variant 2, question 22.

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