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| 1. |
Account for the following pK_b of aniline is more than that of methylamine. |
| Answer» Solution :Basic strength of aniline smaller the value of `pK_b`, STRONGER the base. In aniline, the `NH_2` group is directly attached to the benzene ring. The lone pair of electron on NITROGEN ATOM in ailine gets delocalised over the benzene ring and hence it is less available for protonation makes the, aromatic amines (aniline ) less basic than `NH_3`. So aniline has a LOWER `pK_b` value than methyl amine. | |