Carcks develop in rubber goods due to

Options

A. Ozone
B. PAN
C. Aerosols
D. Mist

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks why cracks develop in rubber goods. We need to identify the cause from the given options: ozone, PAN, aerosols, and mist.

2. **Identifying the Problem**: Cracking in rubber goods is a common issue. It is important to understand what causes this cracking.

3. **Analyzing the Components of Smoke**: The video mentions that smoke, which is a form of intense air pollution, contains various components such as nitrogen oxides, sulfur oxides, and ozone.

4. **Understanding the Sensitivity of Rubber**: Natural rubber is an organic compound that is sensitive to chemical influences. This sensitivity means that chemical reactions can lead to the degradation of rubber, resulting in cracks.

5. **Linking Cracking to Atmospheric Conditions**: The excessive cracking in rubber is indicated as a sign of the presence of atmospheric photochemical oxidants, particularly ozone.

6. **Identifying the Correct Answer**: Among the options provided, ozone is the main component of smoke that contributes to the cracking of rubber goods. Therefore, the correct answer is ozone.

7. **Conclusion**: Cracks in rubber goods develop primarily due to the presence of ozone, which is a photochemical oxidant found in polluted air.

**Final Answer**: Cracks develop in rubber goods due to ozone.

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