Among the following the strongest base is

Options

A. `C_(6)H_(5)NH_(2)`
B. `p-NO_(2)C_(6)H_(5)NH_(2)`
C. `m-NO_(2).C_(6)H_(4)NH_(2)`
D. `C_(6)H_(5)CH_(2)NH_(2)`

Explanation

Benzyl amine (`C_(6)H_(5)-CH_(2)NH_(2)` ie, aliphatic amine) with `-NH_(2)` group in the sise chain behaves like alkyl amines (aliphatic amines) which are more basic as compound with aryl amines which are stabilised due to resonance. On attachment of electron attractive group, basic character is decreased, so benzyl amine is more basic in these amines.