devarshi-dt-logo

Question:

The correct order of the basic strength of methyl substituted amines in aqueous solution is:

CH3NH2>(CH3)2NH>(CH3)3N

(CH3)3N>CH3NH2>(CH3)2NH

(CH3)3N>(CH3)2NH>CH3NH2

(CH3)2NH>CH3NH2>(CH3)3N

Solution:

Correct option is A (CH3)2NH>CH3NH2>(CH3)3N
In aqueous solution, electron donating inductive effect, solvation effect (H-bonding) and steric hindrance all together affect basic strength of substituted amines.
Basic character:
(CH3)2NH20>CH3NH210>(CH3)3N30