Arrange the following in the increasing order of their basic strength in aqueous solution: $C H_{3} N H_{2}, (C H_{3})_{3} N, (C H_{3})_{2} N H$

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Solution

According to fact, when $R = C H_{3}$ group in aliphatic amine, the basic strength would be
$(C H_{3})_{2} N H > C H_{3} N H_{2} > (C H_{3})_{3} N$
This altered basicity is due to the solvation effect in aqueous solution

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Arrange the following in the decreasing order of their basic strength in aqueous solution:

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