Arrange the following :
(a) In decreasing order of `p K_b` values
(I) `C_2H_5 NH_2`
(II) `PhNHMe`
(III) `(C_2H_5)_2 NH`
(IV) `PhNH_2`
(b) In increasing order of basic strength
(I) `PhNH_2`
(II) `PhNM_(e_2)`
(III) `(C_2H_5)_2 NH`
(IV) `MeNH_2`
( c)Increasing order of basic strngth (I) `PhNH_2`
(II) `p-`Nitroaniline
(III) `p-`Toluidine
(d) (I) `PhNH_2`
(II) `PhNHMe`
(III) `PhCH_2NH_2`
( e) In decreasing order of basic strength in gas phase.
(I) `C_2H_5 NH_2`
(II) `(C_2H_5)_2NH`
(III) `(C_2H_5)_3N`
(IV) `NH_3`.

Arrange the following In decreasing order of p K_b values (I) C_2H_5 NH_2 (II) PhNHMe (III) (C_2H_5)_2 NH (IV) PhNH_2

Arrange the following in the decreasing order of pK_b values I. C_2H_5NH_2 , II. C_6H_5NHCH_3 , III. (C_2H_5)_2NH , IV . C_6H_5NH_2

Arrange the following : Decreasing order of basic strength in gas phase : C_2H_5NH_2, (C_2H_5)_2NH, (C_2H_5)_3N and NH_3

Arrange the following. In increasing order of basic strength in gas phase (C_2H_5)CH_2, (C_2H_5)NH, (C_2H_5)_5N " and " NH_3 .

Arrange the following In the decreasing order of basic strength in gas phase C_(2)H_(5)NH_(2), (C_(2)H_(5))_(2) NH, (C_(2)H_(5))_(3)N and NH_(3) .

Arrange the following: (i) In decreasing order of the pK_(b) values: C_(2)H_(5)NH_(2),C_(6)H_(5)NHCH_(3),(C_(2)H_(5))_(2)NHandC_(6)H_(5)NH_(2) (ii) In 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 andCH_(3)NH_(2) (iii) In increasing order of basic strength: (a) Aniline, p-nitroaniline and p-toluidine (b) C_(6)H_(5)NH_(2),C_(6)H_(5)NHCH_(3),C_(6)H_(5)CH_(2)NH_(2) (iv) In decreasing order of basic strength in gas phase: C_(2)H_(5)NH_(2),(C_(2)H_(5))_(2)NH,(C_(2)H_(5))_(3)NandNH_(3) (v) In increasing order of boiling point: C_(2)H_(5)OH,(CH_(3))_(2)NH,C_(2)H_(5)NH_(2) (vi) In increasing order of solubility in water: C_(6)H_(5)NH_(2),(C_(2)H_(5))_(2)NH,C_(2)H_(5)NH_(2^.)

The correct increasing order of basic strength for aniline (I), p-nitroaniline (II), and p-toluidine (III) is …..