Give chemical tests to distinguish between the following| pair of compounds:
`CH_3 -CH_2 -NH_2 and (CH_3)_2 NH`

Explanation

To distinguish between the primary amine (ethylamine, CH₃-CH₂-NH₂) and the secondary amine (dimethylamine, (CH₃)₂NH), we can use the Hinsberg test. Here is a step-by-step solution:

### Step 1: Prepare the Hinsberg Reagent
The Hinsberg reagent is benzenesulfonyl chloride (C₆H₅SO₂Cl).

### Step 2: React the Compounds with the Hinsberg Reagent
1. **For Ethylamine (CH₃-CH₂-NH₂)**:
- When ethylamine is treated with the Hinsberg reagent, it reacts to form a sulfonamide. The reaction can be represented as:
...