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A-LevelChemistryHydrocarbons9701/12 · May/June 2025 · 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

B: CO2 and CH3COCH3

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About this question

Topic
Hydrocarbons, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source
A-Level Chemistry, May/June 2025 Paper 1 Variant 2, question 37.

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