A) \[F{{e}_{3}}{{O}_{4}}\]
B) \[FeC{{O}_{3}}\]
C) \[F{{e}_{2}}{{O}_{3}}\]
D) \[Fe{{S}_{2}}\]
Correct Answer: C
Solution :
Haematite\[(F{{e}_{2}}{{O}_{3}})\]is the main ore of iron.
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