Which of the following is neutral oxide?

Options

A. CO
B. `CO_2`
C. `SiO_2`
D. `Na_2 O`

Answer

To determine which of the following is a neutral oxide, we will analyze the nature of the oxides provided in the options. Neutral oxides are those that do not exhibit acidic or basic properties.

### Step-by-Step Solution:

1. **Understand the Definition of Neutral Oxides**:
- Neutral oxides are oxides that do not react with acids or bases. They are neither acidic nor basic.

2. **Identify the Types of Oxides**:
- Metallic oxides are typically basic in nature.
- Non-metallic oxides are usually acidic in nature.

3. **Analyze the Given Options**:
- Let's consider the common examples of oxides:
- **Sodium Oxide (Na2O)**: This is a metallic oxide and is basic.
- **Silicon Dioxide (SiO2)**: This is a non-metallic oxide and is acidic.
- **Carbon Dioxide (CO2)**: This is also a non-metallic oxide and is acidic.
- **Carbon Monoxide (CO)**: This is a neutral oxide as it does not react with acids or bases.

4. **Conclusion**:
- Among the options, Carbon Monoxide (CO) is the only neutral oxide.

### Final Answer:
The neutral oxide from the given options is **Carbon Monoxide (CO)**.

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