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Reaction of trans-2-phenyl-1-bromocyclopentane with alcoholic KOH produces.

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Question

Reaction of trans-2-phenyl-1-bromocyclopentane with alcoholic KOH produces.

Options

  • 4-phenylcyclopentene

  • 2-phenylcyclopentene

  • 1-phenylcyclopentene

  • 3-phenylcyclopentene

MCQ
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Solution

3-phenylcyclopentene

Explanation: 

When trans-2-phenyl-1-bromocyclopentane reacts with alcoholic KOH, it produces 3-phenylcyclopentene.This reaction is an E₂-reaction that follows an anti-elimination pathway.

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