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Arrange the following : C2 H5 NH2, C6...

Arrange the following :
`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`
(ii) In decreasing order of basic strength :
`C_6 H_5 NH_2 , C_6 H_5N (CH_3)_2 , (C_2 H_5)_2 NH and CH_3 NH_2`
(iii) 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) Decreasing order of basic strength in gas phase :
`C_2 H_5 NH_2 , (C_2 H_5) NH, (C_2 H_5)_3 N and NH_3`
(v) Increasing order of boiling point :
`C_2 H_5 OH , (CH_3)_2 NH, C_2 H_5 NH_2`
(vi) Increasing order of solubility in water :
`C_6 H_5 NH_2 , (C_2 H_5)_2 NH, C_2 H_5 NH_2`

Text Solution

Verified by Experts

(i) `C_6 H_5 NH_2 gt C_6H_5 NHCH_3 gt C_2 H_5 NH_2 gt (C_2H_5)_2 NH`
(ii) `(C_2 H_5)_2 NH gt CH_3 NH_2 gt C_6 H_5 N (CH_3)_2 gt C_6 H_5 NH_2`
(iii) (a) p-nitroaniline `lt ` aniline `lt ` p-toluidine
(b) `C_6 H_5 NHCH_3 lt C_6 H_5 CH_2 NH_2`
(iv) `(C_2 H_5)_2 N gt (C_2 H_5)_2 NH gt C_2 H_5 NH_2 gt NH_3`
(v) `(CH_3)_2 NH lt C_2 H_5 NH_2 lt C_2 H_5 OH`
(vi) `C_6 H_5 NH_2 lt (C_2 H_5)_2 NH lt C_2 H_5 NH_2`
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