Which one of the following is called amphoteric solvent

Options

A. Ammonium hydroxide
B. Chloroform
C. Benzene
D. Water

Explanation

To determine which solvent is classified as an amphoteric solvent, we need to understand the definition of amphoteric substances and identify the characteristics of the given options.

### Step-by-Step Solution:

1. **Understand the Definition of Amphoteric Solvent**:
- An amphoteric solvent is a solvent that can dissolve both acids and bases. This means it can act as both an acid and a base depending on the reaction conditions.

2. **Identify Common Solvents**:
- Common solvents include water, ammonia (ammonium hydroxide), chloroform (CCl4), and others.

3. **Evaluate Each Option**:
- **Water (H2O)**: Water is a well-known amphoteric solvent because it can act as an acid (donating H⁺ ions) and as a base (accepting H⁺ ions).
- **Ammonium Hydroxide (NH4OH)**: This is primarily a base and does not act as an acid, so it is not amphoteric.
- **Chloroform (CCl4)**: Chloroform is a non-polar solvent and does not have the ability to donate or accept protons, thus it is not amphoteric.

4. **Conclusion**:
- Among the options, water is the most recognized amphoteric solvent because it can dissolve both acids and bases effectively.

### Final Answer:
Water (H2O) is called an amphoteric solvent.

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