The two strong acids present in the acid rain are

Options

A. `HNO_(2) and HNO_(3)`
B. `H_(2)SO_(4)and HNO_(3)`
C. `H_(2) SO_(3) and H_(2)SO_(4)`
D. `H_(2)CO_(3) and HCl`

Answer

To answer the question regarding the two strong acids present in acid rain, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Acid Rain**:
- Acid rain occurs when the pH of rainwater falls below 5.6. Normal rainwater has a pH of around 5.6 due to the natural presence of carbonic acid formed from carbon dioxide in the atmosphere.

2. **Identifying the Strong Acids**:
- The two strong acids commonly associated with acid rain are nitric acid (HNO3) and sulfuric acid (H2SO4).

3. **Formation of Nitric Acid (HNO3)**:
- Nitric acid is formed when nitrogen dioxide (NO2) reacts with oxygen (O2) in the atmosphere. This reaction occurs at high temperatures and leads to the formation of nitric acid when NO2 is further oxidized and dissolved in rainwater.

4. **Formation of Sulfuric Acid (H2SO4)**:
- Sulfuric acid is produced when sulfur dioxide (SO2) is oxidized by oxygen in the atmosphere. Similar to nitric acid, this process also occurs at high temperatures and results in the formation of sulfuric acid when SO2 dissolves in rainwater.

5. **Conclusion**:
- The presence of these acids in rainwater lowers the pH, resulting in acid rain. Therefore, the two strong acids present in acid rain are HNO3 (nitric acid) and H2SO4 (sulfuric acid).

### Final Answer:
The two strong acids present in acid rain are **HNO3 (Nitric Acid)** and **H2SO4 (Sulfuric Acid)**.

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