The most reactive molecules towards SN^1 reac | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) The rate of $SN^1$ reaction depends on the stability of the carbocation intermediate formed after the departure of the leaving group $(Cl^-)$. The

Vedclass · Accepted Answer

$(I), (IV)$ and $(VI)$

Vedclass · Answer

(A) The rate of $SN^1$ reaction depends on the stability of the carbocation intermediate formed after the departure of the leaving group $(Cl^-)$. The more stable the carbocation,the faster the $SN^1$ reaction.$(I)$ forms a highly stable carbocation due to resonance stabilization by two $p$-methoxyphenyl groups. The $+R$ effect of the methoxy group significantly stabilizes the positive charge.$(IV)$ is $tert$-butyl chloride,which forms a stable tertiary carbocation.$(VI)$ is $2$-chloro-$2$-phenylpropane,which forms a tertiary carbocation stabilized by resonance with the phenyl ring and the $+I$ effect of methyl groups.$(II)$ is a primary alkyl halide (unstable carbocation).$(III)$ is a primary benzylic halide with a strong electron-withdrawing $-NO_2$ group,which destabilizes the carbocation.$(V)$ is chlorobenzene,which does not undergo $SN^1$ reaction easily due to partial double bond character of the $C-Cl$ bond and the instability of the phenyl cation.Therefore,$(I), (IV)$ and $(VI)$ are the most reactive towards $SN^1$ reaction.

The most reactive molecules towards $SN^1$ reaction are:

Similar Questions

Which of the following is the correct order of decreasing $S_{N^{2}}$ reactivity?
($X$ is a halogen)

What is the primary product of an $S_N1$ reaction on an optically active substance?

$1,2-dichlorocyclopentane$ $\xrightarrow{1 \text{ equivalent } Mg, \text{ ether}} X$ $\xrightarrow{D_2O} Y;$
$Y$ is:

Which of the following statements is incorrect regarding benzyl chloride?

In the given pairs of reactions,in which pair is the second reaction more reactive than the first toward $S_{N}2$ reaction?

Vedclass Test Series

Exam Paper Generator

Online Exam Module