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Question

(C) The reactivity of alkyl halides towards nucleophilic $S_{N}1$ reaction depends on the stability of the intermediate carbocation formed in the rate

Vedclass · Accepted Answer

Tertiary halide $>$ Secondary halide $>$ Primary halide

Vedclass · Answer

(C) The reactivity of alkyl halides towards nucleophilic $S_{N}1$ reaction depends on the stability of the intermediate carbocation formed in the rate-determining step.Since the stability of carbocations follows the order $3^{\circ} > 2^{\circ} > 1^{\circ}$,the reactivity towards $S_{N}1$ follows the same order.Therefore,the correct order is $3^{\circ} 	ext{ halide} > 2^{\circ} 	ext{ halide} > 1^{\circ} 	ext{ halide}$.

Reaction	Product
$I$. $RX + AgCN$	$RNC$
$II$. $RX + KCN$	$RCN$
$III$. $RX + KNO_2$	$RONO$
$IV$. $RX + AgNO_2$	$RNO_2$

Choose the correct decreasing order of reactivity of alkyl halides towards $S_{N}1$ reaction.

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For $CH_3Br + OH^{-} \rightarrow CH_3OH + Br^{-}$ the rate of reaction is given by the expression:

Ethanolic $KOH$ gives

Which of the following pairs is/are correctly matched?

Reaction Product

$I$. $RX + AgCN$ $RNC$

$II$. $RX + KCN$ $RCN$

$III$. $RX + KNO_2$ $RONO$

$IV$. $RX + AgNO_2$ $RNO_2$

Which describes the best stereochemical aspects of the following reaction?
$Ph-C(CH_3)(CD_3)(OH) + HBr \rightarrow \text{Product}$

The correct sequence of bond enthalpy of $C-X$ bond is:

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