Question

Diazonium salts are reaction products between nitrous acid and ______​

Answer 1

Aromatic amines and nitrous acid react to form diazonium salts.

Answer 2

Diazonium salts are the reaction products between nitrous acid and aromatics amines.

• Diazonium salts are positively charged chemical compounds that contain two azo groups or Nitrogen in their structure.
• The Diazonium salt finds its major application in pigment and dye industries.
• It is formed by the chemical reaction of nitrous acid and aromatics amines or aniline and its derivatives.
• The chemical reaction for the formation of diazonium salt is given as:

          C₆H₅NH₂   +    HNO₂   + H⁺Cl⁻       →   C₆H₅N₂⁺Cl⁻ +    2H₂O

            Aniline       Nitrous Acid               Diazonium Salt    Water

• The Diazonium salt formed in the reaction is called Benzene Diazonium Chloride (BDC).

• Hence, it is prepared by the reaction of aromatics amine and nitrous acid.