Nitrogen Containing CompoundHard
Question
Among the following, the strongest base is :
Options
A.C6H5NH2
B.p-NO2C6H4NH2
C.m-NO2.C6H4NH2
D.C6H5CH2NH2
Solution
In a, b and c, atom is directly attached to benzene ring and its lone pair tart in resonance with nenzene ring and so it is less available for protonation, so they are weaker bases. On the otherhand, in benzylamine lone pair of N-atom can not take part in resonance and so this - NH2 gp. is almost as stronger base as alkyl amino group and so strongest base among these.
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