Assertion :- Chemical mutagens are more harmful as compared to radiations.
Reason: `C Cl_(4)` is firstly disscovered chemical mutagen.

Options

A. If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.
B. If both Assertion & Reason are trur but Reason is not a correct explanation of the Assertion.
C. If Assertion is True but the Reason is Flase.
D. If both Assertion & Reason are false.

Answer

**Step-by-Step Solution:**

1. **Understanding the Assertion**: The assertion states that "Chemical mutagens are more harmful as compared to radiations." We need to evaluate whether this statement is true or false.

2. **Defining Mutagens**: Mutagens are agents that cause mutations in the DNA. They can be physical agents like radiation or chemical agents like certain chemicals.

3. **Comparing Harmfulness**: The assertion claims that chemical mutagens are more harmful than radiations. This can be justified by the fact that chemical mutagens can directly interact with cellular components, leading to mutations. In contrast, while radiation can also cause mutations, it is often mitigated by protective barriers such as skin.

4. **Conclusion on Assertion**: Given that chemical mutagens can cause mutations more directly and are often more readily absorbed by the body, the assertion is true.

5. **Understanding the Reason**: The reason provided is that "CCl₄ (carbon tetrachloride) is the first discovered chemical mutagen." We need to evaluate the accuracy of this statement.

6. **Evaluating the Reason**: The claim that CCl₄ is the first discovered chemical mutagen is incorrect. The first chemical mutagen discovered was actually mustard gas, not carbon tetrachloride.

7. **Conclusion on Reason**: Since the reason is false, we conclude that the assertion is true, but the reason is false.

8. **Final Evaluation**: Based on the evaluation, we can determine the relationship between the assertion and the reason. The assertion is true, but the reason is false.

9. **Choosing the Correct Option**: Given the evaluations:
- Option 1: Both assertion and reason are true - Incorrect.
- Option 2: Both assertion and reason are true, and reason is the correct explanation of assertion - Incorrect.
- Option 3: Assertion is true but reason is false - Correct.
- Option 4: Both assertion and reason are false - Incorrect.

Thus, the correct answer is Option 3.

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