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Why do allylic and benzylic halides react readily by SN1?
AHalogen leaves as a radical
BResonance stabilises the cation
CThe carbon is crowded
DThe C-X bond is very short
Answer & Solution
Correct answer: B. Resonance stabilises the cation
The carbocation formed is delocalised through resonance with the double bond or ring, lowering the energy of ionisation.
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