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Question
Give reason for the following:
The product formed during SN1 reaction is a racemic mixture.
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Solution
During the SN1 mechanism, intermediate carbocation formed is sp2 hybridized and planar in nature. This allows the attack of nucleophiles from either side of the plane resulting in a racemic mixture.
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RELATED QUESTIONS
Given reasons: SN1 reactions are accompanied by racemization in optically active alkyl halides.
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| Column I | Column II | |
| (i) |  |
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| (ii) | \[\begin{array}{cc} \ce{CH3 - CH = CH2 + HBr -> CH3 - CH - CH3}\\ \phantom{............................}|\phantom{}\\ \phantom{.............................}\ce{Br}\phantom{} \end{array}\] |
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| (iii) |  |
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| (iv) |  |
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| (v) | \[\begin{array}{cc} \ce{CH3 CH2 CH CH3 ->[alc.KOH] CH3 CH = CH CH3}\\ \phantom{}|\phantom{..........................}\\ \phantom{}\ce{Br}\phantom{........................} \end{array}\] |
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