Question

Ethyl chloride on heating with $AgCN$ form a compound X. The functional isomer of X is :

• A. $C_2{H}_{5}NC$
• B. $C_2{H}_{5}N{H}_2$
• C. $C_2{H}_{5}CN$
• D. None of these

Answer 1

Answer: (C)

$C_2{H}_{5}CN$

Ethyl chloride on heating with AgCN form a compound X which is ethyl isocyanide.
$C_2{H}_{5}Cl+AgCN\stackrel{\Delta }{\to }{C}_2{H}_{5}NC+AgCl$
The functional isomer of X is ethyl cyanide $C_2{H}_{5}CN$

Hence the correct option is C.