Question

Observe the following sequence of reactions :

+CH3NH2 $\xrightarrow [ ( 1 ) ] { }$ + $\mathrm { CH } _ { 3 } \stackrel { \oplus } { \mathrm { N } } \mathrm { H } _ { 3 } \stackrel { \ominus } { \mathrm { C } }$ + CH3NH2 +

+

Select the correct option regarding the relative basic strength (Kb)

• A. $> \underset { \text { NH } } { > \mathrm { CH } _ { 3 } - \mathrm { NH } _ { 2 } }$
• B. $> \mathrm { CH } _ { 3 } - \underset { \| } { \mathrm { C } } - \mathrm { NH } _ { 2 }$ NH
• C. $> \underset { \text { NH } } { > \mathrm { CH } _ { 3 } - \mathrm { NH } _ { 2 } }$ > CH3NH2
• D. CH3NH2**>**

Answer 1

Answer: (C)

$> \underset { \text { NH } } { > \mathrm { CH } _ { 3 } - \mathrm { NH } _ { 2 } }$ > CH3NH2

Answer 2

On the basis of availability of electron pair.