Which of the following statements about photochemical smog is wrong ?

Options

A. It has high concentration of oxidising agents.
B. It has low concentration of oxidising agent.
C. It can be controlled by controlling the release of `NO_(2)` , hydrocarbons , ozone etc.
D. Plantation of some plants like pinus helps in controlling photochemical smog.

Explanation

To determine which statement about photochemical smog is incorrect, we can analyze each option provided.

### Step-by-Step Solution:

1. **Understand Photochemical Smog**:
- Photochemical smog is a type of air pollution that is formed when sunlight reacts with pollutants such as nitrogen oxides and volatile organic compounds (VOCs). This reaction produces a mixture of pollutants, including ozone (O3), which is a significant component of photochemical smog.

2. **Evaluate Each Statement**:
- **Option 1**: "It has high concentration of oxidizing agents."
- This statement is **correct**. Photochemical smog is characterized by a high concentration of oxidizing agents, such as ozone and nitrogen oxides.

- **Option 2**: "It has low concentration of oxidizing agents."
- This statement is **incorrect**. Photochemical smog is known for having a high concentration of oxidizing agents, not low. Therefore, this is the wrong statement regarding photochemical smog.

- **Option 3**: "It can be controlled by controlling the release of NO2, hydrocarbons, ozone, etc."
- This statement is **correct**. By reducing the emissions of these pollutants, the formation of photochemical smog can be minimized.

- **Option 4**: "Plantation of some plants like pinus helps in controlling photochemical smog."
- This statement is **correct**. Certain plants can absorb pollutants and help improve air quality, thus contributing to the control of photochemical smog.

3. **Conclusion**:
- The incorrect statement about photochemical smog is **Option 2**: "It has low concentration of oxidizing agents."

### Final Answer:
The wrong statement about photochemical smog is Option 2: "It has low concentration of oxidizing agents."

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