question_answer

Aniline on treatment with sodium nitrite and \[HCl\]at \[0{{\,}^{o}}C\]to produce which of the following compound?

A) Diazonium salt  

B) Hydrozo compound

C) Phenol and \[{{N}_{2}}\] 

D) Nitroaniline

Correct Answer: A

Solution :

Primary aromatic amines react with nitrous acid at low temperatures (273 - 278K) to give aromatic diazonium salts. This reaction is known as diazotisation.