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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