Question

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

विकल्प

• 4-phenylcyclopentene

• 2-phenylcyclopentene

• 1-phenylcyclopentene

• 3-phenylcyclopentene

Answer 1

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.