Compound (s) is used for the distinction of primary, secondary and tertiary amines is/are

Options

A. alkaline chloroform
B. benzenesulphonyl chloride
C. p-toluenesulfonyl chloride
D. both (2)& (3)

Answer

To solve the question regarding the compound(s) used for the distinction of primary, secondary, and tertiary amines, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks for compounds that can distinguish between primary, secondary, and tertiary amines.

2. **Identifying the Test**: The Hinsberg test is a well-known method used for this purpose. It involves the use of a specific reagent that reacts differently with primary, secondary, and tertiary amines.

3. **Identifying the Reagents**: The key reagents used in the Hinsberg test are:
- Benzene sulfonyl chloride (also known as benzene sulfonyl fluoride).
- Para-toluene sulfonyl chloride may also be considered, as it functions similarly.

4. **Reactions with Amines**:
- **Primary Amines**: When a primary amine reacts with benzene sulfonyl chloride, it forms a soluble sulfonamide in alkaline solution.
- **Secondary Amines**: When a secondary amine reacts, it forms a sulfonamide that is not soluble in alkaline solution.
- **Tertiary Amines**: Tertiary amines do not react with benzene sulfonyl chloride, indicating their presence.

5. **Conclusion**: Based on the reactions, we conclude that benzene sulfonyl chloride is the primary compound used for distinguishing between primary, secondary, and tertiary amines. Para-toluene sulfonyl chloride can also be used, but it is less common.

6. **Final Answer**: The correct answer is that the compounds used for the distinction of primary, secondary, and tertiary amines are benzene sulfonyl chloride and para-toluene sulfonyl chloride.