Which of the following is an iron ore?
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Correct Answer: Option C
Detailed Explanation:
Limonite is a hydrated iron oxide (FeO(OH)·nH₂O) and an important secondary iron ore.
Cinnabar is mercury sulfide (HgS), Bauxite is aluminium ore (Al₂O₃·nH₂O), and Pyrite is iron sulfide (FeS₂) with high sulfur content, making it unsuitable for iron extraction.
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Which of the following minerals occurs in the Minas Gerais province of Brazil?
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