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Question

(C) $S_N^1$ reaction proceeds via the formation of a carbocation intermediate. The rate of $S_N^1$ reaction is directly proportional to the stability

Vedclass · Accepted Answer

$CH_3-C(CH_3)_2-Cl$

Vedclass · Answer

(C) $S_N^1$ reaction proceeds via the formation of a carbocation intermediate. The rate of $S_N^1$ reaction is directly proportional to the stability of the carbocation formed. The stability order of carbocations is $3^\circ > 2^\circ > 1^\circ > CH_3^+$.In the given options:$(a)$ $CH_3-CH_2-Cl$ forms a $1^\circ$ carbocation $(CH_3-CH_2^+)$.$(b)$ $(CH_3)_2CH-Cl$ forms a $2^\circ$ carbocation $((CH_3)_2CH^+)$.$(c)$ $CH_3-C(CH_3)_2-Cl$ forms a $3^\circ$ carbocation $((CH_3)_3C^+)$.$(d)$ $CH_3-CH(CH_3)-CH_2-Cl$ forms a $1^\circ$ carbocation $(CH_3-CH(CH_3)-CH_2^+)$.Since the $3^\circ$ carbocation is the most stable,the $S_N^1$ reaction is fastest in $CH_3-C(CH_3)_2-Cl$.

Reactants	Products
$A$. $C_2H_5Cl$,moist $Ag_2O$	$I$. $CH_3CH_2ONO$
$B$. $C_2H_5Cl$,aqueous ethanolic $AgCN$	$II$. $C_2H_4$
$C$. $C_2H_5Cl$,aqueous ethanolic $AgNO_2$	$III$. $CH_3CH_2OH$
$D$. $C_2H_5Cl$,ethanolic $KOH$	$IV$. $CH_3CH_2NC$

$S_N^1$ reaction is faster in

Similar Questions

Which of the following is likely to undergo racemization during alkaline hydrolysis?

Which one of the following is chiral?

What will be the major product of the following reaction?
$(CH_3)_2CH-CH_2Br \xrightarrow{CH_3O^- / CH_3OH}$

Which of the following compounds will undergo racemisation when hydrolysed by an aqueous $KOH$ solution?
$(i)$ $C_6H_5CH_2Cl$
$(ii)$ $CH_3CH_2CH_2Cl$
$(iii)$ $(CH_3)_2CHCH_2Cl$
$(iv)$ $CH_3CH(Cl)C_2H_5$

Match the following:
Reactants Products
$A$. $C_2H_5Cl$,moist $Ag_2O$ $I$. $CH_3CH_2ONO$
$B$. $C_2H_5Cl$,aqueous ethanolic $AgCN$ $II$. $C_2H_4$
$C$. $C_2H_5Cl$,aqueous ethanolic $AgNO_2$ $III$. $CH_3CH_2OH$
$D$. $C_2H_5Cl$,ethanolic $KOH$ $IV$. $CH_3CH_2NC$

The correct match is:

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