1.

Arrangethe following:(i) In decreasing order of the pKbvalues:C2H5NH2,C6H5NHCH3,(C2H5)2NHand C6H5NH2(ii) In increasing order of basicstrength:C6H5NH2,C6H5N(CH3)2,(C2H5)2NHand CH3NH2(iii) In increasing order of basicstrength:(a) Aniline,p-nitroanilineand p-toluidine(b) C6H5NH2,C6H5NHCH3,C6H5CH2NH2.(iv) In decreasing order of basicstrength in gas phase:C2H5NH2,(C2H5)2NH,(C2H5)3Nand NH3(v) In increasing order of boilingpoint:C2H5OH,(CH3)2NH,C2H5NH2(vi) In increasing order of solubilityin water:C6H5NH2,(C2H5)2NH,C2H5NH2.

Answer»

Arrange
the following:


(i)
In decreasing order of the pKbvalues:


C2H5NH2,
C6H5NHCH3,
(C2H5)2NH
and C6H5NH2


(ii)
In increasing order of basic
strength:


C6H5NH2,
C6H5N(CH3)2,
(C2H5)2NH
and CH3NH2


(iii)
In increasing order of basic
strength:


(a) Aniline,
p-nitroaniline
and p-toluidine


(b) C6H5NH2,
C6H5NHCH3,
C6H5CH2NH2.


(iv)
In decreasing order of basic
strength in gas phase:


C2H5NH2,
(C2H5)2NH,
(C2H5)3N
and NH3


(v)
In increasing order of boiling
point:


C2H5OH,
(CH3)2NH,
C2H5NH2


(vi)
In increasing order of solubility
in water:


C6H5NH2,
(C2H5)2NH,
C2H5NH2.


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