question_answer

    Which of the following is the strongest base?

A)                        

B)  

C)                        

D)  

Correct Answer: D

Solution :

                \[C{{H}_{3}}-\](an electron releasing (+1) group) increases electron density at N-atom hence basic nature is increased. (a) (b)          (c)   (d)   \[{{C}_{6}}{{H}_{5}}\]decreases electron density at N-atom thus basic nature is decreased. (Lone-pair on N in aniline compounds is delocalised along with \[\pi -\]electrons in benzene). Thus, (d) is the strongest base.