C_3H_7I (P) xrightarrow[text{alc. } KOH]{Delt | vedclass

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(D) $1$. $P$ is $C_3H_7I$. $2$. Reaction with alc. $KOH$ is a dehydrohalogenation reaction (elimination). $3$. If $P$ is $CH_3-CH_2-CH_2-I$ ($n$-propy

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$A$ and $B$ both

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(D) $1$. $P$ is $C_3H_7I$. $2$. Reaction with alc. $KOH$ is a dehydrohalogenation reaction (elimination). $3$. If $P$ is $CH_3-CH_2-CH_2-I$ ($n$-propyl iodide),$Q$ is $CH_3-CH=CH_2$ (propene). $4$. $NBS$ ($N$-Bromosuccinimide) performs allylic bromination. $CH_3-CH=CH_2 \xrightarrow{NBS} Br-CH_2-CH=CH_2$ $(R)$. $5$. $R$ reacts with $KCN$ to give $CH_2=CH-CH_2-CN$ (allyl cyanide). $6$. If $P$ is $CH_3-CH(I)-CH_3$ (isopropyl iodide),$Q$ is also $CH_3-CH=CH_2$ (propene),leading to the same product. $7$. Thus,both $A$ and $B$ can be $P$.

Column-$I$	Column-$II$
$A$. $S_N1$ reaction	$1$. vic-dibromides
$B$. Chemicals in fire extinguisher	$2$. gem-dihalides
$C$. Bromination of alkenes	$3$. Racemisation
$D$. Alkylidene halides	$4$. Saytzeff rule
$E$. Elimination of $HX$ from alkyl halide	$5$. Chlorobromocarbons

$C_3H_7I$ $(P)$ $\xrightarrow[\text{alc. } KOH]{\Delta}$ $Q$ $\xrightarrow{NBS}$ $R$ $\xrightarrow{KCN}$ $CH_2 = CH - CH_2 - CN$. $P$ can be:

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