The correct order of the basis strength of methyl substituted...

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

Options

A ${\left(C{H}_{3}\right)}_{2}NH > C{H}_{3}N{H}_{2} > {\left(C{H}_{3}\right)}_{3}N$
B ${\left(C{H}_{3}\right)}_{3}N > C{H}_{3}N{H}_{2} > {\left(C{H}_{3}\right)}_{2}NH$
C ${\left(C{H}_{3}\right)}_{3}N > {\left(C{H}_{3}\right)}_{2}N{H}_{} > {CH}_{3}N{H}_{2}$
D $C{H}_{3}N{H}_{2} > {\left(C{H}_{3}\right)}_{2}NH > {\left(C{H}_{3}\right)}_{3}N$

Correct answer

A. ${\left(C{H}_{3}\right)}_{2}NH > C{H}_{3}N{H}_{2} > {\left(C{H}_{3}\right)}_{3}N$

Step-by-step solution

Combined effect of the inductive effect of Alkyl group $\left(+ I\right),$ steric hindrance and the salvation of Amines causes the basicity order to be Secondary Amine > Primary Amine > Tertiary Amine

${\left(C{H}_{3}\right)}_{2}NH > C{H}_{3}N{H}_{2} > {\left(C{H}_{3}\right)}_{3}N$

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