Trans - 2 phenyl 1 - bromocyclopenta ne ...

Trans - 2 phenyl 1 - bromocyclopenta ne on reaction with alcoholic KOH produces

A

2-phenylcyclopentene

B

1-phenylcyclopentene

C

3-phenylcyclopentene

D

4-phenylcyclopentene

Text Solution

Verified by Experts

The correct Answer is:

C

It is anti-elimination reaction in which H-atom from second carbon atom cannot be eliminated because it is in syn position. But H atom from 5th carbon gets eliminated.

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Which product is formed when trans-2-phenyl-1-bromocyclopentane is treated with alcoholic KOH?

n-propyl bromide on treatment with alcoholic KOH produces

Knowledge Check

Reactio of trans 2-phynyl-1- bromocyclopentane on reaction with alcoholic KOH produces

A

4-phenylchlopentene

B

2-phenylcyclopentene

C

1-phenylcyclopentene

D

3-phenylcyclopentene

Correct order for reaction with alcoholic KOH

A

a gt b gt c gt d

B

a gt c gt b gt d

C

d gt b gt c gt a

D

a gt d gt b gt c

n-propyl bromide on treating with alcoholic KOH produces

A

Propyne

B

Propanol

C

Propane

D

Propene

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MODERN PUBLICATION-HYDROCARBONS-COMPETITION FILE (OBJECTIVE TYPE QUESTIONS) (MULTIPLE CHOICE QUESTIONS from competitive examinations (JEE (Main) and Other State Boards. Engineering Entrance))

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