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Question

Chemistry Question on Alcohols, Phenols and Ethers

HBr reacts with CH2=CH??CH3CH_2=CH??CH_3 under anhydrous conditions at room temperature to give :

A

CH3CHOCH_3CHO and CH3BrCH_3Br

B

BrCH2CHOBrCH_2CHO and CH3OHRCH_3OHR

C

BrCH2??CH2??OCH3BrCH_2 ??CH_2 ??OCH_3

D

H3C??CHBr??OCH3H_3C ??CHBr ??OCH_3

Answer

H3C??CHBr??OCH3H_3C ??CHBr ??OCH_3

Explanation

Solution

First protonation occurs, two possible intermediates are II, is more favourable Hence, $Br^?? attacks, and product is