Assertion: Zone refining method is used to produce pure metals which are used as semiconductors.
Reason: Semiconductors are used in highly pure form.

Options

A. If both assertion and reason are true and reason is the correct explanation of assertion .
B. if both assertion and reason are true but reason is not the correct explanation of assertion
C. If assertion is true but reason is false
D. If both assertion and reason are false.

Answer

To solve the question, we need to analyze both the assertion and the reason provided.

### Step 1: Analyze the Assertion
The assertion states that "Zone refining method is used to produce pure metals which are used as semiconductors."

- **Explanation**: Zone refining is a technique used to purify metals. It is particularly effective for metals that are used in semiconductor applications, as these metals need to be of very high purity to function properly in electronic devices.

### Step 2: Analyze the Reason
The reason states that "Semiconductors are used in highly pure form."

- **Explanation**: This statement is true because the electrical properties of semiconductors are highly sensitive to impurities. Even small amounts of impurities can significantly affect their conductivity and overall performance.

### Step 3: Determine the Relationship Between Assertion and Reason
Now we need to determine if the reason correctly explains the assertion.

- The assertion is correct: Zone refining is indeed used to produce pure metals for semiconductors.
- The reason is also correct: Semiconductors must be in highly pure form to function effectively.

However, the reason does not specifically explain why zone refining is used; it merely states a fact about semiconductors. Therefore, while both statements are true, the reason does not provide a direct explanation for the assertion.

### Conclusion
- **Assertion**: True
- **Reason**: True
- **Explanation Relationship**: The reason is not the correct explanation for the assertion.

Thus, the answer to the question is that both the assertion and reason are correct, but the reason is not the correct explanation of the assertion.

### Final Answer
Both the assertion and the reason are correct, but the reason is not the correct explanation for the assertion.

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