In the diazotisation of aniline with sodium nitrite and hydrochloric acid, an excess of hydrochloric acid is used primarily to
A
Suppress the concentration of free aniline available for coupling
B
Suppress hydrolysis of phenol
C
Insure a stoichiometric amount of nitrous acid
D
Neutralize the base liberated
Difficult
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A
Suppress the concentration of free aniline available for coupling
a (a)To supress the concentration of the aniline available for coupling other rise coupling occurs.
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