1.

The correct order of basicities of PhNH_(2)(A), and Ph_(2)NH(B) and cyclohexyl-NH_(2)(C) is

Answer»

`AgtBgtC`
`AgtCgtB`
`CgtAgtB`
`CgtBgtA`

Solution :Substituion of H-atoms of the `-NH_(2)` GROUP of `1^(@)` arylamines by electron withdrawing groups (such as PHENYL group) decreases the basicity . Order of basicity:
`UNDERSET((A))(C_(6)H_(5)NH_(2))gtunderset((B))((C_(6)H_(5))_(2)NH)`
The LONE pairs of N are not involved in delocalization in cylcohexylamine (C), hence it has HIGHEST basicity.
`therefore` Order of basicity : `CgtAgtB`


Discussion

No Comment Found

Related InterviewSolutions