Skip to main content
A-LevelChemistryHydrocarbonsMay/June 2025Paper 1 Q371 Mark

Alkane S has molecular formula C4H10. S reacts with Cl2(g) in the presence of sunlight to produce only two different monochloroalkanes, C4H9Cl. Both of these monochloroalkanes are treated with hot ethanolic KOH. They both produce the same alkene T, and no other organic products. What is produced when T is treated with hot concentrated acidified KMnO4?

ACO2 and CH3CH2CO2H
BCO2 and CH3COCH3
CHCO2H and CH3COCH3
DCH3CO2H only

✓ Correct Answer

The correct answer is B. This question tests the candidate's understanding of hydrocarbons 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) May/June 2025 examination, Paper 1 Variant 2. It tests the topic of Hydrocarbons 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