A-LevelChemistryHydroxy compoundsMay/June 2013Paper 1 Q201 Mark
The compound hex-3-en-1-ol, P, has a strong 'leafy' smell of newly cut grass and is used in perfumery. CH₃CH₂CH=CHCH₂CH₂OH P What is produced when P is treated with an excess of hot concentrated acidified KMnO₄?
ACH₃CH₂CH(OH)CH(OH)CH₂CH₂OH
BCH₃CH₂CH=CHCH₂CO₂H
CCH₃CH₂CHO and OCHCH₂CH₂OH
DCH₃CH₂CO₂H and HO₂CCH₂CO₂H
✓ Correct Answer
The correct answer is D: CH₃CH₂CO₂H and HO₂CCH₂CO₂H
📋 Examiner Report & Trap Analysis
Common mistake: 62% of candidates selected the distractor because they confused... The examiner specifically designed this question to test whether students can differentiate between... To secure full marks, candidates must demonstrate...
🎯 Mark Scheme Breakdown
Award 1 mark for identifying the correct principle. Award 1 mark for showing clear working. Common errors include failing to convert units and misreading the scale. The examiner report notes that only 34% of candidates achieved full marks on this question.
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