In which of the following, resonance of -NH_(2) group is possible ?

1.	In which of the following, resonance of -NH_(2) group is possible ?
Answer» 1-Aminobutane Ethylamine Benzylamine p-Toluidine Solution :Only in p-toluidine (4-methylaniline), the `-NH_(2)` group is directly attached to the BENZENE RING and HENCE resonance is possible.

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