Do as directed :
(i) Arrange the following compounds in the increasing order of their basic strength in aqueous solution:
`CH_3NH_2,(CH_3)_3N,(CH_3)_2NH`.
(ii) Identify 'A' and 'B'
(iii) Write equation of carbonylamine reaction.

Explanation

(i) Basic strength in aqueous solution :
`(CH_3)_2NH gt CH_3NH_2gt(CH_3)_3N`
(ii)
(iii) Carbylamine reaction :
`underset(i)underset("amine")R -NH_2+CHCl_2+underset("alc")(3KOH)to underset("isocyanide")(RNC)+3KCI +2H_2O`