Which of the following oxide is amphoteric in nature?

Options

A. `SnO_2`
B. `SiO_2`
C. GeO_2`
D. CO_2`

Answer

To determine which of the following oxides is amphoteric in nature, we need to understand the concept of amphoteric oxides. Amphoteric oxides are those that can react with both acids and bases.

### Step-by-Step Solution:

1. **Identify the Oxides**: The question provides a list of oxides. Let's assume the options are:
- A) SnO2 (Tin oxide)
- B) SiO2 (Silicon dioxide)
- C) GeO2 (Germanium dioxide)
- D) CO2 (Carbon dioxide)

2. **Understand Amphoteric Nature**: Amphoteric oxides can react with both acids and bases. For example, they can react with acids to form salts and water, and with bases to form complex ions.

3. **Analyze Each Oxide**:
- **SnO2 (Tin oxide)**: This oxide is known to be amphoteric. It can react with acids to form tin salts and can also react with bases to form stannate ions.
- **SiO2 (Silicon dioxide)**: This oxide is generally acidic and does not exhibit amphoteric behavior.
- **GeO2 (Germanium dioxide)**: This oxide is also primarily acidic and does not show amphoteric properties.
- **CO2 (Carbon dioxide)**: This oxide is acidic in nature and does not react with bases.

4. **Conclusion**: Among the given options, only SnO2 (Tin oxide) is amphoteric as it can react with both acids and bases.

### Final Answer:
The oxide that is amphoteric in nature is **SnO2 (Tin oxide)**.