Question

Identify (Z) in the following series,

$C_2{H}_{5}I\underset{KOH}{\overset{alcoholic}{\to }}\left(X\right)\stackrel{B{r}_2}{\to }\left(Y\right)\stackrel{KCN}{\to }\left(Z\right)$

• A. $C{H}_3-C{H}_2-CN$
• B. $\underset{CN}{\underset{|}{C{H}_2}}-\underset{CN}{\underset{|}{C{H}_2}}$
• C. $C{H}_3-C{H}_3$
• D. $C{H}_2=C{H}_2$

Answer 1

The correct option is B $\underset{CN}{\underset{|}{C{H}_2}}-\underset{CN}{\underset{|}{C{H}_2}}$

$C_2{H}_{5}I\underset{KOH}{\overset{alcoholic}{\to }}C{H}_2=C{H}_2\stackrel{B{r}_2}{\to }\underset{\underset{Br}{|}}{C}{H}_2-\underset{\underset{Br}{|}}{C}{H}_2\stackrel{KCN}{\to }\underset{\underset{CN}{|}}{C}{H}_2-\underset{\underset{CN}{|}}{C}{H}_2$

Hence, option B is correct.