A-LevelChemistryHydroxy compoundsOct/Nov 2024Paper 1 Q331 Mark

The compound 'leaf alcohol' is partly responsible for the smell of new-mown grass. leaf alcohol CH3CH2CH=CHCH2CH2OH What will be formed when ‘leaf alcohol' is oxidised using an excess of hot acidified K2Cr2O7(aq)?

Q: What is the correct answer to this A-Level Chemistry question?

The correct answer is C: CH3CH2CH=CHCH2CO2H.

Q: What topic does this question test?

This question tests Hydroxy compounds in A-Level Chemistry (syllabus code 9701). It is worth 1 mark.

ACH3CH2CH(OH)CH(OH)CH2CO2H

BCH3CH2COCOCH2CO2H

CCH3CH2CH=CHCH2CO2H

DCH3CH2CO2H and HO2CCH2CO2H

✓ Correct Answer

The correct answer is C: CH3CH2CH=CHCH2CO2H

📋 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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About This A-Level Chemistry Question

Topic

This multiple-choice question tests Hydroxy compounds in A-Level Chemistry (syllabus code 9701). It is worth 1 mark.

Source

This question appeared in the Cambridge A-Level Chemistry Oct/Nov 2024 examination, Paper 1 Variant 2.

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