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Oxidation states of the metal in the min...

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

A

II, III in haematite and III in magnetite

B

II, III in haematite and II in magnetite

C

II in haematite and II, III in magnetite

D

III in haematite and II, III in magnetite

Text Solution

Verified by Experts

The correct Answer is:
D
(i) Haematite is `Fe_(2)O_(3)` in which Fe is present in III oxidation state.
(ii) Magnetite `(Fe_(3)O_(4))` is an equimolar mixture of FeO and `Fe_(2)O_(3)`.
Oxidation state of Fe in FeO is II.
Oxidation state of Fe in `Fe_(2)O_(3)` is III.
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