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Preparation of Alcohols from Alkenes

Addition of ...

Question

Addition of $H B r$ gives the same product in the presence or absence of peroxide when alkene is:

A

butene

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B

isobutene

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C

2,3-dimethylbut-2-ene

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D

propene

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Solution

The correct option is B isobutene
As the alkene is symmetrical, so produce will be same on adding only $H B r$ or adding $H B r$ with peroxide.

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