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Assertion : For the extraction of iron, haematite ore is used. Reason : Haematite is a carbonate ore of iron.

1. Both the assertion and reason are correct, but the reason is not the correct explanation for the assertion.
2. Both the assertion and reason are correct and the reason is the correct explanation for the assertion.
3. Only the reason is correct.
4. Only the assertion is correct.

Correct answer: Only the assertion is correct.

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