Q.
The correct order of decreasing basic character of the three aliphatic primary amines is
Solution:
Note the point of difference in the given compounds which here lies at -carbon. In I, II, III, the -carbon atoms are and hybridised respectively which in turn cause the difference in their character. We know that more is the character of an atom, greater will be its electronwithdrawing nature. Thus character) hybridised carbon is most electron-withdrawing, while character) is least electron-withdrawing. Further, we know that presence of an electron-withdrawing group decreases basicity of an amine. Thus
