How many compounds are less basic than aniline ( i ) ( i i ) ( i i i ) ( i v ) N H 3 ( v ) ( v i )

Step-by-step solution

lone pair delocalized so less basic than aniline. – M effect of - N O 2 decrease the basicity so it is less basic than aniline. - C H 3 group at ortho so ortho effect exert here hence basic character decrease as compare to aniline. Lone pair of - N involve in delocalization and ring become aromatic due to this so it is also less basic then aniline. N H 3 is more basic then aniline because phenyl group exert – I effect. ( v ) is derivative of guanidine so they are more basic than aniline.