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Question

Two Isomeric alkenes A and B having molecular formula, C5H9Cl on adding H2, A gives optically inactive compound while B gives a chiral compound. The two isomer are


A

A is 3-chloro-1-pentene and B is 1-chloropentene

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B

A is 2-chloro-3-methyl-2-butene and B is 1- chloro-3-methyl-1-butene

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C

A is 3-chloro-2-pentene and B is 2-chloro-2-pentene

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D

A is 4-chloro-2-pentene and B is 4-chloro-1-pentene

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Solution

The correct option is C

A is 3-chloro-2-pentene and B is 2-chloro-2-pentene


CH3CH2Cl|C=CHCH3 H2 CH3CH2Cl|CHCH2CH3

3-Chloro-2-pentene(A) Optically inactive

CH3CH2CH=Cl|CCH3 H2 CH3CH2CH2Cl|CH.CH3

2-Chloro-2-Pentene(B) Opticaly active


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