Among the following compounds C(3)H(7)NH...

Among the following compounds `C_(3)H_(7)NH_(2)NH_(3)CH_(3)NH_(2)C_(2)H_(5)NH_(2)` and `C_(6)H_(5)NH_(2)` the least basic compounds is .

`C_(3)H_(7)NH_(2)`

`NH_(3)`

`CH_(3)NH_(2)`

`C_(6)H_(5)NH_(2)`

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The correct Answer is:

`C_(6)H_(5)NH_(2)` is least basic compound due to resonance by which the lone pair of nitrogen takes part in resonance `&` due to unavailability of lone pair on N. Aniline become less basic. The lone pair of N is delocalized into benzene ring by resonance

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