Nitrogen dioxide

Options

A. Does not dissolve in water
B. Dissolves to form 6 acid and gives off oxygen
C. Dissolves forming nitric acid
D. Dissolves to form a mixture of nitrous

Answer

To solve the question regarding nitrogen dioxide (NO2) and its behavior when dissolved in water, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Nitrogen Dioxide**:
- Nitrogen dioxide (NO2) is a reddish-brown gas with a characteristic sharp, biting odor. It is a significant air pollutant and is involved in the formation of smog and acid rain.

2. **Reaction with Water**:
- When nitrogen dioxide is dissolved in water, it undergoes a chemical reaction. The reaction can be represented as:
\[ 2 \text{NO}_2 + \text{H}_2\text{O} \rightarrow \text{HNO}_3 + \text{HNO}_2 \]
- In this reaction, nitrogen dioxide reacts with water to form two acids: nitric acid (HNO3) and nitrous acid (HNO2).

3. **Identifying the Products**:
- From the reaction, we can see that the products are:
- HNO3 (Nitric Acid)
- HNO2 (Nitrous Acid)

4. **Conclusion**:
- Therefore, when nitrogen dioxide is dissolved in water, it forms a mixture of nitric acid and nitrous acid.

5. **Selecting the Correct Options**:
- Based on the information derived from the reaction, if the options provided in the question include statements about the formation of nitric acid and nitrous acid from nitrogen dioxide, then options C and D would be correct.

### Final Answer:
- The correct answer is that nitrogen dioxide dissolves in water to form a mixture of nitric acid (HNO3) and nitrous acid (HNO2).