Concentrated `H_(2)SO_(4)` can't act as a`//`an

Options

A. Catalyst
B. Dehydrating agent
C. Hydrolysing agent
D. Dehydrating agent and catalyst

Answer

To solve the question "Concentrated H₂SO₄ can't act as a ___", we need to analyze the properties and roles of concentrated sulfuric acid (H₂SO₄) in various chemical reactions.

### Step-by-Step Solution:

1. **Understanding the Role of Concentrated H₂SO₄**:
- Concentrated sulfuric acid is known for its strong acidic properties and is commonly used in various chemical reactions.

2. **Identifying its Functions**:
- **Catalyst**: H₂SO₄ often acts as a catalyst in many acid-catalyzed reactions. It facilitates reactions without being consumed in the process.
- **Dehydrating Agent**: H₂SO₄ is also a powerful dehydrating agent. It can remove water from substances, such as converting alcohols to alkenes through dehydration.

3. **Evaluating the Options**:
- **Option 1**: Catalyst - This is a correct function of concentrated H₂SO₄.
- **Option 2**: Dehydrating Agent - This is also a correct function of concentrated H₂SO₄.
- **Option 3**: Hydrolyzing Agent - This is where we need to focus. Hydrolyzing agents typically add water or OH groups to a substance. Concentrated H₂SO₄ does not act as a hydrolyzing agent.
- **Option 4**: Dehydrating Agent and Catalyst - This is correct as well.

4. **Conclusion**:
- Since concentrated H₂SO₄ cannot act as a hydrolyzing agent, the answer to the question is that concentrated H₂SO₄ can't act as a hydrolyzing agent.

### Final Answer:
Concentrated H₂SO₄ can't act as a hydrolyzing agent.

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