1.

Which of the following reaction/statement is incorrect?

Answer»

Benzenediazonium chloride is prepared by the REACTION of aniline with nitrous acid at 273 - 278 K

The conversion of primary aromatic amines into diazonuim salts is known as DIAZOTISATION
Diazonium salt is not GENERALLY stored, used IMMEDIATELY after its preparation

Solution :Benzenediazonium chloride is prepared by the reaction of aniline with nitrous acid at 273-278 K . The conversion of primary aromatic amines into diazonium salts is known as diazotisation. Due to its unstability, the diazonium salt is not generally stored and is used immediately after its preparation.
`C_6H_5NH_2 + NaNO_2 + 2HCl overset(273-278 K)to C_6H_5N_2^(+)Cl^(-) + NaCl + 2H_2O`
Temperature must vary from `0.5^@ C`


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