Which of the following is Hinsberg reagent ?

Options

A. `C_(6)H_(5)SO_(2)CH_(3)`
B. `C_(6)H_(5)SO_(2)Cl`
C. `SnCl_(2)`
D. `CoCl_(2)`

Answer

To determine which of the following is the Hinsberg reagent, we can follow these steps:

### Step 1: Understand the Hinsberg Reagent
The Hinsberg reagent is a chemical compound used primarily in organic chemistry to differentiate between primary, secondary, and tertiary amines.

### Step 2: Identify the Molecular Formula
The molecular formula for the Hinsberg reagent is C6H5SO2Cl. This indicates that it consists of a benzene ring (C6H5) attached to a sulfonyl group (SO2) and a chlorine atom (Cl).

### Step 3: Recognize the Common Name
The common name for the Hinsberg reagent is benzene sulfonyl chloride. This name helps in identifying the compound in various contexts.

### Step 4: Understand Its Function
The Hinsberg reagent reacts with primary and secondary amines to form sulfonamides. It can also help distinguish between secondary and tertiary amines based on the reaction products.

### Step 5: Choose the Correct Option
From the options provided, we need to select the one that matches the molecular formula C6H5SO2Cl or its common name, benzene sulfonyl chloride.

### Conclusion
The correct answer for the Hinsberg reagent is C6H5SO2Cl (benzene sulfonyl chloride).

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