Arrange the following: (i) In the decreasing order of the pKb values C

1.	Arrange the following: (i) In the decreasing order of the pKb values C2H5NH2,C6H5NHCH3,(C2H5)2NH and C6H5NH2 (ii) In increasing order of basic strength: C6H5NH2,C6H5N(CH3)2,(C6H5)2NHandCH3NH2 (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.
Answer» Arrange the following: (i) In the decreasing order of the $p K_{b}$ values $C_{2} H_{5} N H_{2}, C_{6} H_{5} N H C H_{3}, (C_{2} H_{5})_{2} N H$ and $C_{6} H_{5} N H_{2}$ (ii) In increasing order of basic strength: $C_{6} H_{5} N H_{2}, C_{6} H_{5} N (C H_{3})_{2}, (C_{6} H_{5})_{2} N H a n d C H_{3} N H_{2}$ (iii) In increasing order of basic strength: (a) Aniline, p-nitroaniline and p-toluidine (b) $C_{6} H_{5} N H_{2}, C_{6} H_{5} N H C H_{3}, C_{6} H_{5} C H_{2} N H_{2}$ (iv) In decreasing order of basic strength in gas phase : $C_{2} H_{5} N H_{2}, (C_{2} H_{5})_{2} N H, (C_{2} H_{5})_{3} N a n d N H_{3}$ (v) In increasing order of boiling point: $C_{2} H_{5} O H, (C H_{3})_{2} N H, C_{2} H_{5} N H_{2} .$ (vi) In increasing order of solubility in water : $C_{6} H_{5} N H_{2}, (C_{2} H_{5})_{2} N H, C_{2} H_{5} N H_{2} .$

Arrange the following: (i) In the decreasing order of the pKb values C2H5NH2,C6H5NHCH3,(C2H5)2NH and C6H5NH2 (ii) In increasing order of basic strength: C6H5NH2,C6H5N(CH3)2,(C6H5)2NHandCH3NH2 (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.

Answer»

Arrange the following:

(i) In the decreasing order of the $p K_{b}$ values
$C_{2} H_{5} N H_{2}, C_{6} H_{5} N H C H_{3}, (C_{2} H_{5})_{2} N H$ and $C_{6} H_{5} N H_{2}$

(ii) In increasing order of basic strength:
$C_{6} H_{5} N H_{2}, C_{6} H_{5} N (C H_{3})_{2}, (C_{6} H_{5})_{2} N H a n d C H_{3} N H_{2}$

(iii) In increasing order of basic strength:
(a) Aniline, p-nitroaniline and p-toluidine
(b) $C_{6} H_{5} N H_{2}, C_{6} H_{5} N H C H_{3}, C_{6} H_{5} C H_{2} N H_{2}$

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

$C_{2} H_{5} N H_{2}, (C_{2} H_{5})_{2} N H, (C_{2} H_{5})_{3} N a n d N H_{3}$

(v) In increasing order of boiling point:

$C_{2} H_{5} O H, (C H_{3})_{2} N H, C_{2} H_{5} N H_{2} .$

(vi) In increasing order of solubility in water :

$C_{6} H_{5} N H_{2}, (C_{2} H_{5})_{2} N H, C_{2} H_{5} N H_{2} .$

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