Question

The one which is least basic is

• A. $NH_3$
• B. $C_6H_5NH_7$
• C. $(C_6H_5)_3N$
• D. $(C_6H_5)_2NH$

Answer 1

Answer: (C)

$(C_6H_5)_3N$

Answer 2

More the number of benzene ring attached directly to nitrogen atom of amino group, more will be the delocalisation of lone pair of electrons and lesser will be the basic strength.