The test to distinguish primary, secondary and tertiary amine is

Options

A. Mustrard oil test
B. `C_(6)H_(5)SO_(2)Cl`
C. Sandmeyer's reaction
D. Carbylamine reaction

Answer

To distinguish between primary, secondary, and tertiary amines, we can use the Hinsberg test, which involves the use of Hinsberg's reagent, benzene sulfonyl chloride (C6H5SO2Cl). Here’s a step-by-step breakdown of the process:

### Step-by-Step Solution:

1. **Understanding the Reagents**:
- The reagent used in this test is benzene sulfonyl chloride (C6H5SO2Cl), commonly referred to as Hinsberg's reagent.

2. **Preparation of the Sample**:
- Take the amine sample (which can be primary, secondary, or tertiary) and prepare it for the test.

3. **Conducting the Test**:
- Shake the amine sample well with Hinsberg's reagent. This reaction will help us identify the type of amine present.

4. **Observing the Reaction**:
- **For Primary Amines**:
- The reaction will yield an N-alkyl benzene sulfonamide, which is soluble in alkali (base).
- **For Secondary Amines**:
- The reaction will produce an N,N-dialkyl benzene sulfonamide, which is insoluble in alkali.
- **For Tertiary Amines**:
- There will be no reaction with the Hinsberg reagent, indicating the presence of a tertiary amine.

5. **Interpreting the Results**:
- If the product is soluble in alkali, it indicates a primary amine.
- If the product is insoluble in alkali, it indicates a secondary amine.
- If there is no reaction, it indicates a tertiary amine.

6. **Conclusion**:
- Based on the solubility and the reaction observed, you can distinguish between primary, secondary, and tertiary amines.

### Final Answer:
The test to distinguish primary, secondary, and tertiary amines is **Hinsberg's test** using benzene sulfonyl chloride (C6H5SO2Cl).