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(C) The basicity of amines in aqueous solution depends on the inductive effect,solvation effect,and steric hindrance. $C_6H_5NH_2$ (aniline) is the le

Vedclass · Accepted Answer

$ C_6H_5NH_2 < (CH_3)_3N < CH_3NH_2 < (CH_3)_2NH $

Vedclass · Answer

(C) The basicity of amines in aqueous solution depends on the inductive effect,solvation effect,and steric hindrance. $C_6H_5NH_2$ (aniline) is the least basic because the lone pair on nitrogen is involved in resonance with the benzene ring. Among the aliphatic amines,$(CH_3)_2NH$ is the most basic due to the combined effect of the electron-donating methyl groups and favorable solvation. $(CH_3)_3N$ is less basic than $(CH_3)_2NH$ due to steric hindrance,and $CH_3NH_2$ is less basic than $(CH_3)_2NH$ but more basic than $(CH_3)_3N$ in some conditions,but generally,the order in aqueous medium is $(CH_3)_2NH > CH_3NH_2 > (CH_3)_3N$. Thus,the correct increasing order is $C_6H_5NH_2 < (CH_3)_3N < CH_3NH_2 < (CH_3)_2NH$.

Arrange the following in increasing order of basicity: $CH_3NH_2$,$(CH_3)_2NH$,$C_6H_5NH_2$,$(CH_3)_3N$.

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