A) Supress the concentration of free aniline available for coupling.
B) Supress hydrolysis of phenol.
C) Ensure a stoichiometric amount of nitrous acid.
D) Neutralise the base liberated.
Correct Answer: A
Solution :
[a] Excess of HCl is used to convert free aniline to aniline hydrochloride otherwise free aniline would undergo coupling reaction with benzenediazonium chloride.You need to login to perform this action.
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