Skip to main content
A-LevelChemistryCarbonyl compoundsOct/Nov 2009Paper 1 Q271 Mark

Cyanohydrins can be made from carbonyl compounds by generating CN⁻ ions from HCN in the presence of a weak base. [Figure 27.1] In a similar reaction, ⁻CH2CO2CH3 ions are generated from CH3CO2CH3 by strong bases. Which compound can be made from an aldehyde and CH3CO2CH3 in the presence of a strong base?

ACH3CH(OH)CO2CH3
BCH3CO2CH2CH(OH)CH3
CCH3CH2CH(OH)CH2CO2CH3
D(CH3)2C(OH)CH2CO2CH3

✓ Correct Answer

The correct answer is C. This question tests the candidate's understanding of carbonyl compounds within the Chemistrysyllabus. The examiner's mark scheme requires...

📋 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...

🔒

Unlock the Examiner's Answer

Sign up for free to reveal the correct answer, the official mark scheme breakdown, and the examiner trap analysis for this question.

Sign Up Free to Unlock →

Join thousands of Cambridge students already using Oracle Prep

About This A-Level Chemistry Question

This multiple-choice question appeared in the Cambridge A-Level Chemistry (9701) Oct/Nov 2009 examination, Paper 1 Variant 2. It tests the topic of Carbonyl compounds and is worth 1 mark.

Oracle Prep provides AI-powered practice for all Cambridge O-Level and A-Level subjects. Our platform includes topic predictions with 87.7% accuracy, AI essay grading, and a comprehensive question bank spanning 25 years of past papers.

© 2026 Oracle Prep — The AI-Powered Cambridge Exam Engine