The wrong statement among the following is :

Options

A. Acid rain is mostly because of oxides of nitrogen and sulphur
B. Greenhouse effect is responsible for global warming.
C. Ozone layer does not permit infrared radiation from the sun to reach earth.
D. Chlorofluorocarbons are responsible for ozone layer depletion.

Answer

To determine the wrong statement among the provided options regarding environmental pollution, we can analyze each statement step by step.

### Step-by-Step Solution:

1. **Understanding Acid Rain**:
- The first statement claims that acid rain is mostly caused by oxides of nitrogen and sulfur.
- It is known that sulfur dioxide (SO₂) reacts with oxygen (O₂) and water (H₂O) to form sulfuric acid (H₂SO₄), while nitrogen dioxide (NO₂) reacts similarly to form nitric acid (HNO₃).
- Both H₂SO₄ and HNO₃ are components of acid rain, making this statement **correct**.

2. **Greenhouse Effect and Global Warming**:
- The second statement discusses the greenhouse effect, stating that it is responsible for global warming.
- The greenhouse effect is indeed a natural process that warms the Earth’s surface by trapping heat from the sun.
- This statement is also **correct**.

3. **Ozone Layer and Infrared Radiation**:
- The third statement claims that the ozone layer does not permit infrared radiation from the sun to reach the Earth.
- It is important to note that the ozone layer primarily absorbs harmful ultraviolet (UV) radiation, while infrared radiation is not significantly hindered by ozone.
- Therefore, this statement is **incorrect**.

4. **Chlorofluorocarbons and Ozone Depletion**:
- The fourth statement asserts that chlorofluorocarbons (CFCs) are responsible for ozone layer depletion.
- This is scientifically accurate, as CFCs break down ozone molecules in the stratosphere, leading to ozone depletion.
- Thus, this statement is **correct**.

### Conclusion:
The wrong statement among the options provided is the **third statement**: "Ozone layer does not permit infrared radiation from the sun to reach Earth."