question_answer 4)

Arrange the following in increasing order of their basic strength: (i) and (ii) (iii)   (a) Presence of electron donating R group increases the basicity ofamines. However,  amines in aqueous solution are less basic due to steric hindrance. (b) Ahphatic amines are more- basic than aromatic bases because in later lone pair takes part in delocalization, so less available for donation,  

Answer:

(i) (ii) (iii)