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13.7     Write short notes on the following:

                (ii) Diazotisation

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DIAZOTISATION-

Aromatic primary amines react with nitrous acid (NaNO_{2}+2HCl)at low temperature to form diazonium salts. This conversion of aromatic primary amines into diazonium salt is known as diazotisation.

C_{6}H_{5}NH_{2}+NaNO_{2}+2HCl\overset{273-278K}{\rightarrow}C_{6}H_{5}N^{+}_{2}Cl^{-}+NaCl+2H_{2}O

                                                                

 

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manish

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