Q.

In which of the following states maximum iron ore is found?

A. FeCO₃
B. Fe₂O₃
C. Fe₃O₄
D. FeS₂
Answer» B. Fe₂O₃
Explanation: Iron ores are rocks and minerals from which metallic iron can be economically extracted. The ores are usually rich in iron oxides and vary in colour from dark grey, bright yellow, or deep purple to rusty red.
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