Which of the following statements about the S | vedclass

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(A, B, C) The $S_{N}2$ reaction is a bimolecular nucleophilic substitution reaction. $1$. The rate of reaction depends on the concentration of both th

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Tertiary butyl substrates do not follow this mechanism.

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(A, B, C) The $S_{N}2$ reaction is a bimolecular nucleophilic substitution reaction. $1$. The rate of reaction depends on the concentration of both the substrate and the nucleophile,hence it is a second-order reaction. $2$. The rate increases with the strength of the nucleophile (nucleophilicity). $3$. Tertiary substrates are sterically hindered,making $S_{N}2$ reactions extremely slow or impossible. $4$. Optical rotation change is not guaranteed; it depends on the priority of the incoming nucleophile compared to the leaving group according to Cahn-Ingold-Prelog rules. Therefore,statements $A$,$B$,and $C$ are true.

Which of the following statements about the $S_{N}2$ reaction mechanism is/are true?

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The product $(B)$ of the reaction is:

In the given reaction
$CH_3-CH(OTs)-CH_2-CH_2-CH(OTs)-CH_3$ $\xrightarrow[(ii) \ KOH]{(i) \ SH^{\ominus} (one \ equivalent)}$ $[X]$
$[X]$ will be :

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