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23/01/2022 3:07 pm
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A solution of (+) - 2 - chloro - 2 - phenylethane in toluene racemises slowly in the presence of small amounts of SbCl5 due to the formation of
(a) Carbanion
(b) Carbene
(c) Free radical
(d) Carbocation
1 Answer
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23/01/2022 3:10 pm
Correct answer: (d) Carbocation
Explanation:
SbCl5 pulls Cl- to form - SbCl6- leaving behind planar C6H5 - CH - CH3 carbonium ion. It can be attacked from either side leading to racemic mixture.