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

### Step-by-Step Solution:

#### (i) Arrange the following compounds in the increasing order of their basic strength in aqueous solution: `CH3NH2`, `(CH3)2NH`, `(CH3)3N`.

1. **Identify the Compounds**:
- `CH3NH2` is methylamine (a primary amine).
- `(CH3)2NH` is dimethylamine (a secondary amine).
- `(CH3)3N` is trimethylamine (a tertiary amine).
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