Account for the following:
pKb of aniline is more than that of methylamine.
It is because, in aniline, the NH2 group is attached directly to the benzene ring. It results in the unshared electron pair of the nitrogen atom to be in conjugation with the benzene ring and thus making it less available for protonation.
on another hand, in the case of methylamine (due to the +I effect of a methyl group), the electron density on the N-atom is increased. As a result, aniline is less basic than methylamine. Thus, pkb of aniline is more than that of methylamine
191 Views
