A Levels Chemistry (9701)•9701/13/M/J/20
Explanation
Reaction misidentified: alcohol vs. carbonyl for cyanohydrin formation Steps:
- Recognize propanol (CH3CH2CH2OH or CH3CH(OH)CH3) does not form cyanohydrins; HCN adds to carbonyls like aldehydes/ketones.
- Note given formula CH3CH2OH (ethanol) + HCN → CH3CH(OH)CN mismatches: product from acetaldehyde (CH3CHO), not alcohol.
- Sodium cyanide catalyzes cyanohydrin formation by generating CN⁻ nucleophile for carbonyl attack.
- Conclude question likely intends carbonyl reactant; statements in choices evaluate mechanism, conditions, or errors.
Not enough information: Choices A–C/D unspecified.
Final answer: Not enough information.
Topic: Carbonyl compounds
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