Oxygen on reaction with non-metals forms oxides , which are

Options

A. basic oxides
B. acidic oxides
C. amphoteric oxides
D. neutral oxides

Explanation

To answer the question "Oxygen on reaction with non-metals forms oxides which are?", we will analyze the reactions of oxygen with various non-metals and the nature of the resulting oxides.

### Step-by-Step Solution:

1. **Identify Non-Metals**:
- Non-metals are elements that typically lack metallic properties. Common non-metals include sulfur (S), nitrogen (N), phosphorus (P), and carbon (C).

2. **Reactions with Oxygen**:
- When oxygen reacts with non-metals, it forms oxides. Let's look at a couple of examples:
- **Nitrogen + Oxygen**:
- Reaction: \( N_2 + O_2 \rightarrow 2 NO \) (Nitric Oxide)
- Further oxidation: \( 2 NO + O_2 \rightarrow 2 NO_2 \) (Nitrogen Dioxide)
- **Sulfur + Oxygen**:
- Reaction: \( S + O_2 \rightarrow SO_2 \) (Sulfur Dioxide)

3. **Nature of the Oxides**:
- The oxides formed from these reactions can be classified based on their behavior in water:
- **Nitrogen Dioxide (NO2)**:
- When it reacts with water, it forms nitric acid:
\[ 3 NO_2 + H_2O \rightarrow 2 HNO_3 \]
- This indicates that nitrogen dioxide is an acidic oxide.
- **Sulfur Dioxide (SO2)**:
- When it reacts with water, it forms sulfurous acid:
\[ SO_2 + H_2O \rightarrow H_2SO_3 \]
- This indicates that sulfur dioxide is also an acidic oxide.

4. **Conclusion**:
- From the reactions, we can conclude that the oxides formed when oxygen reacts with non-metals such as nitrogen and sulfur are acidic oxides. Therefore, the answer to the question is that the oxides formed are acidic.

### Final Answer:
Oxygen on reaction with non-metals forms oxides which are **acidic oxides**.