Question

Identify $Y$ in the following reaction.
$C_2{H}_5{NH}_2\underset{{NaNO}_2}{\overset{HCl}{\to }}\left[X\right]\stackrel{H_{2}O}{\to }Y$

• A. $C_2{H}_5{N}_{2}Cl$
• B. $C_2{H}_{5}Cl$
• C. $C_2{H}_{5}OH$
• D. $C_2{H}_6$

Answer 1

The correct option is C $C_2{H}_{5}OH$

Ethyl amine reacts with sodium nitrite and HCl in cold condition to form unstable diazonium salt (compound X) which decomposes to form ethanol (compound Y).

In this process, nitrogen gas is liberated.

The reaction is as follows:

$\underset{ethylamine}{C_2{H}_5{NH}_2}\underset{{NaNO}_2}{\overset{HCl}{\to }}\underset{\left[X\right]}{\left[C_2{H}_5{N}_2^{+}C{l}^{-}\right]}\stackrel{H_{2}O}{\to }\underset{\left[Y\right]}{C_2{H}_{5}OH}$

Hence, $Y$ is $C_2{H}_{5}OH$.