Arrange the following as directed: (i) In an increasing order of basic strength: C_(6)H_(5)NH_(2),C_(6)H_(5)N(CH_(3))_(2),(C_(2)H_(5))_(2)NH and NH_(3)NH_(2) (ii) In decreasing order of basic strength: aniline, p-nitroaniline and p-toluidine. (iii) In increasing order of pK_(a) values: C_(2)H_(5)NH_(2),C_(6)H_(5)NHCH_(3),(C_(2)H_(5))_(2)NH and C_(6)H_(5)NH_(2)

Arrange the following as directed: (i) In an increasing order of basi

1.	Arrange the following as directed: (i) In an increasing order of basic strength: C_(6)H_(5)NH_(2),C_(6)H_(5)N(CH_(3))_(2),(C_(2)H_(5))_(2)NH and NH_(3)NH_(2) (ii) In decreasing order of basic strength: aniline, p-nitroaniline and p-toluidine. (iii) In increasing order of pK_(a) values: C_(2)H_(5)NH_(2),C_(6)H_(5)NHCH_(3),(C_(2)H_(5))_(2)NH and C_(6)H_(5)NH_(2)
Answer» Solution :Hint : (i) `C_(6)H_(5)NH_(2) lt C_(6)H_(5)N(CH_(3))_(2) lt CH_(3)NH_(2) lt (C_(2)H_(5))_(2)` (II) p-toluidine `lt` toluidine `lt` aniline `lt` p-nitroaniline (iii) `(C_(2)H_(5))_(2)NH lt C_(2)H_(5)NH_(2) lt C_(2)H_(5)NH_(2) lt C_(6)H_(5)NHCH_(3) lt C_(6)H_(5)NH_(2)`.