Question

$C{H}_{3}C{H}_{2}I\stackrel{KCN}{\to }\underset{major}{X}\underset{excess}{\overset{H_{2}O,H^{+}}{\to }}Y\stackrel{LiAl{H}_4}{\to }Z$
In the given reaction:

• A. $X$ is $C{H}_{3}C{H}_{2}NC$
• B. $Y$ is $C{H}_3-C{H}_2-\stackrel{O}{\stackrel{||}{C}}-N{H}_2$
• C. $Z$ is $C{H}_{3}C{H}_{2}C{H}_{2}OH$
• D. $Z$ gives iodoform test

Answer 1

The correct option is C $Z$ is $C{H}_{3}C{H}_{2}C{H}_{2}OH$

$C{H}_{3}C{H}_{2}I\stackrel{KCN}{\to }\underset{\left(X\right)}{C{H}_{3}C{H}_{2}CN}\underset{excess}{\overset{H_{2}O,H^{+}}{\to }}C{H}_{3}C{H}_{2}COOH\stackrel{LiAl{H}_4}{\to }C{H}_{3}C{H}_{2}C{H}_{2}OH$
$Z$ is $C{H}_{3}C{H}_{2}C{H}_{2}OH$ which cannot give the iodoform test.