Assertion : CFC's hazardous to the enviroment .
Reason : CFC's contain fluorine which is a highly reactive gas .

Options

A. If both Assertion and Reason are CORRECT and Reason is the CORRECT explanation of the Assertion.
B. If both Assertion and Reason are CORRECT but Reason is not the CORRECT explanation of the Assertion .
C. If Assertion is CORRECT but Reason is INCORRECT .
D. If Assertion is INCORRECT but Reason is CORRECT

Answer

### Step-by-Step Solution:

1. **Understanding the Assertion**: The assertion states that "CFCs are hazardous to the environment."
- **Explanation**: Chlorofluorocarbons (CFCs) are known to be harmful because they contribute to ozone layer depletion, which leads to increased UV radiation reaching the Earth, causing environmental and health issues.

2. **Understanding the Reason**: The reason given is "CFCs contain fluorine which is a highly reactive gas."
- **Explanation**: While fluorine is indeed a highly reactive element, CFCs are not hazardous primarily due to the presence of fluorine. Instead, their environmental impact is mainly due to the chlorine component, which is responsible for the destruction of ozone molecules in the stratosphere.

3. **Evaluating the Relationship**: We need to determine if the reason correctly explains the assertion.
- **Analysis**: Although both the assertion and reason are correct, the reason does not provide the correct explanation for why CFCs are hazardous. The hazard comes from their ability to deplete the ozone layer, not solely from the presence of fluorine.

4. **Choosing the Correct Option**: Based on the analysis:
- **Conclusion**: Both the assertion and reason are correct, but the reason is not the correct explanation of the assertion. Therefore, the correct option is option 2.

### Final Answer:
The correct option is: **Option 2** - Both assertion and reason are correct, but the reason is not the correct explanation of the assertion.

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