Consider the following compounds: (i) p- methyl aniline (ii) N, N- dimethylaniline (iii) N- ethyl aniline (iv) N- ethyl -N- methyl aniline The compounds which do not form diazonium salt with ice-colds NaNO 2 and HCl are:

Question

Consider the following compounds: (i) p- methyl aniline (ii) N, N- dimethylaniline (iii) N- ethyl aniline (iv) N- ethyl -N- methyl aniline The compounds which do not form diazonium salt with ice-colds NaNO 2 and HCl are: (A) (i), (ii) and (iii) (B) (ii), (iii) and (iv) (C) (i), (iii) and (iv) (D) (ii) and (iv)

Tardigrade Admin · Accepted Answer

Diazonium salt is formed only when the -NH2 group is directly bonded to the benzene ring. <img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/chemistry/3f1f9e24638396c23dc048e02267e370-.png" /> As a result, compounds (ii), (iii) and (iv) do not form diazonium salt.

Q. Consider the following compounds:
(i) $p -$ methyl aniline
(ii) $N, N -$ dimethylaniline
(iii) $N -$ ethyl aniline
(iv) $N -$ ethyl $- N -$ methyl aniline
The compounds which do not form diazonium salt with ice-colds $N a N O_{2}$ and $H Cl$ are:

(i), (ii) and (iii)

(ii), (iii) and (iv)

(i), (iii) and (iv)

(ii) and (iv)

Diazonium salt is formed only when the $- N H_{2}$ group is directly bonded to the benzene ring.

As a result, compounds (ii), (iii) and (iv) do not form diazonium salt.

Q. Consider the following compounds: (i) p− methyl aniline (ii) N,N− dimethylaniline (iii) N− ethyl aniline (iv) N− ethyl −N− methyl aniline The compounds which do not form diazonium salt with ice-colds NaNO2​ and HCl are: