A-LevelChemistryCarbonyl compoundsOct/Nov 2010Paper 1 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
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The correct answer is C. This question tests the candidate's understanding of carbonyl compounds within the Chemistrysyllabus. The examiner's mark scheme requires...
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