A-LevelChemistryHalogen derivatives9701/12 · Oct/Nov 2025 · Q311 Mark

Which reaction is classified as SN1?

Athe reaction of 1-chloropropane with ammonia in ethanol

Bthe reaction of 1-chloropropane with potassium hydroxide in ethanol

Cthe reaction of 2-chloro-2-methylpropane with potassium cyanide in ethanol

Dthe reaction of 2-chloro-2-methylpropane with potassium hydroxide in ethanol

✓ Correct answer

C: the reaction of 2-chloro-2-methylpropane with potassium cyanide in ethanol

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Topic: Halogen derivatives, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source: A-Level Chemistry, Oct/Nov 2025 Paper 1 Variant 2, question 31.

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