Embibe Experts Solutions for Chapter: Amines, Exercise 1: EXERCISE-1

The carboxylic acids react with hydrazoic acid in presence of ${\mathrm{H}}_2{\mathrm{SO}}_4$ to form a primary amine. This reaction is called as :-

In the above sequence $\mathrm{A} \& \mathrm{B}$ respectively are-

The correct set of the products obtained in the following reactions

$\mathrm{RCN}\stackrel{\mathrm{reduction}}{\to }\left(\mathrm{A}\right), \mathrm{RCN}\underset{\left(\mathrm{ii}\right) {\mathrm{H}}_2\mathrm{O}}{\overset{\left(\mathrm{i}\right) {\mathrm{CH}}_3\mathrm{MgBr}}{\to }}\left(\mathrm{B}\right), \mathrm{RNC}\stackrel{\mathrm{hydrolysis}}{\to }\left(\mathrm{C}\right), {\mathrm{RNH}}_2\stackrel{{\mathrm{HNO}}_2}{\to }\left(\mathrm{D}\right)$

The answer is :

$\mathrm{A}+{\mathrm{CS}}_2+{\mathrm{HgCl}}_2$ gives ${\mathrm{C}}_2{\mathrm{H}}_5-\mathrm{N}=\mathrm{C}=\mathrm{S}$. Thus compound $\mathrm{A}$ is :-

In the reaction sequence :-

$\mathrm{A}\stackrel{{\mathrm{SnCl}}_2/\mathrm{HCl}}{⟶}\mathrm{B}\underset{0^{°}}{\stackrel{{\mathrm{NaNO}}_2/\mathrm{HCll}}{⟶}\stackrel{}{0}}\underset{⟶}{\mathrm{C}}\stackrel{{\mathrm{H}}_2\mathrm{O}/\mathrm{\Delta }}{⟶}{\mathrm{C}}_6{\mathrm{H}}_5\mathrm{OH},\mathrm{A},\mathrm{B}$ and  $\mathrm{C}$ are:-

The bromination of aniline in water produces :-

Which of the following reagents can convert benzenediazonium chloride into benzene?

Hofmann's method to separate amines in a mixture uses the reagent :-