S_N^1 and S_N^2 reactions are | vedclass

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(D) $S_N^1$ reactions are stereoselective because they involve the formation of a carbocation intermediate,which can lead to a mixture of retention an

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Both $(b)$ and $(c)$

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(D) $S_N^1$ reactions are stereoselective because they involve the formation of a carbocation intermediate,which can lead to a mixture of retention and inversion (racemization),though often favoring inversion. $S_N^2$ reactions are stereospecific because they proceed via a single-step mechanism involving a backside attack,resulting in a complete Walden inversion of configuration. Therefore,$S_N^1$ is stereoselective and $S_N^2$ is stereospecific. Thus,the correct option is $(d)$.

$S_N^1$ and $S_N^2$ reactions are

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