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| 1. |
Arrange the following in increasing order of their basic strength :CH_3NH_2 , (CH_3)_2 NH , (CH_3)_3N, C_6 H_5NH_2,C_6 H_5CH_2 NH_2 |
| Answer» Solution : As explained in answer (i), `C_6 H_5 NH_2` is less basic than `C_6 H_5 CH_2 NH_2` and both these amines are less basic than the THREE methylamines. Out of three methylamines, `(CH_3)_2NH` is more basic than `(CH_3)_3N` due to greater steric hinderance and less solvation of `(CH_3)_3 overset(+ )NH` ion. It is also less basic than `CH_3 NH_2` due to greater steric hinderance and less solvation. Thus, the correct order of basic STRENGTH is: ` C_6 H_5NH_2ltC_6 H_5CH_2 lt NH_2lt (CH_3)_3 NHlt CH NH_2lt(CH_3)_2 NH` | |