The pairr of amphoteric oxides is

Options

A. `BeO,ZnO`
B. `Al_(2)O_(3),Li_(2)O`
C. `BeO,BO_(3)`
D. `BeO,MgO`

Explanation

To determine the pair of amphoteric oxides from the given options, we need to understand what amphoteric oxides are. Amphoteric oxides are compounds that can react with both acids and bases to form salts and water.

### Step-by-Step Solution:

1. **Definition of Amphoteric Oxides**:
- Amphoteric oxides are substances that can react with both acids and bases. This means they can behave as either an acid or a base depending on the nature of the reacting substance.

2. **Analyzing the Options**:
- We have four pairs of oxides to analyze:
1. BeO and ZnO
2. Al2O3 and Li2O
3. BeO and BO3
4. BeO and MgO

3. **Evaluating Each Pair**:
- **Option 1: BeO and ZnO**:
- **BeO (Beryllium Oxide)**: It is known to be amphoteric as it can react with both acids and bases.
- **ZnO (Zinc Oxide)**: It is also amphoteric and can react with both acids and bases.
- **Conclusion**: This pair is amphoteric.

- **Option 2: Al2O3 and Li2O**:
- **Al2O3 (Aluminum Oxide)**: It is amphoteric and can react with both acids and bases.
- **Li2O (Lithium Oxide)**: This is a basic oxide and can only react with acids.
- **Conclusion**: This pair is not amphoteric.

- **Option 3: BeO and BO3**:
- **BeO (Beryllium Oxide)**: As established, it is amphoteric.
- **BO3 (Boron Trioxide)**: This is an acidic oxide and can only react with bases.
- **Conclusion**: This pair is not amphoteric.

- **Option 4: BeO and MgO**:
- **BeO (Beryllium Oxide)**: Amphoteric.
- **MgO (Magnesium Oxide)**: This is a basic oxide and can only react with acids.
- **Conclusion**: This pair is not amphoteric.

4. **Final Conclusion**:
- The only pair of amphoteric oxides from the options given is **Option 1: BeO and ZnO**.