Question

8. Rank the following anilines in order of increasing basicity, from 1 for weakest base to 5 for strongest base. NH2 NH2 NH2 NH2 NHCHE CN CN Br

Answer 1

on N. Om N due to resoname Ansun NH2 has loon pain So if e density is increased so basicite, will increase. > and -CH3 has tl effect whenas -CN and -Br has Givity - I effect NH2 MVH 2 NH₂ - CON so due to -I/-r effect of -(N, е- density on N is decreasing, so it has least basicity NOW -CN and Br both has Pe effect but a little extent of tR effect. Br has ②NH2 NH₂ so basicity. NH₂ NH2 C.BR 1 Br NHL NH2 CH3 In cases of

Along with , -CHE CH3 groupis prosen both will event t I effect on Natam as a result e-density on N will be increased and basicily will increase So baricity NH CH3 NH2 0 NH2 So NH2 NH₂ NH CH3 NH2 CN Br CN N 2 3 5 1