Oxidation states of the metal in the minerals haematite and magnetite, respectively, are

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Chemistry

Ores and Minerals

Question

II in haematite and II, III in magnetite

II, III in haematite and II in magnetite

III in haematite and II, III in magnetite

II, III in haematite and III in magnetite

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Haematite is $\overset{+ 3}{F} e_{2} O_{3}$

Magnetite is Fe₃O₄ or $\overset{+ 2}{F} eO . \overset{+ 3}{F} e_{2} O_{3}$