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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 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 `Fe_(2)O_(3) :  Fe`
`:. 2x + 3 (-2) = 0`
`:.x = 3`
(ii) Magnetite `(Fe_2O_4)` is mixture of `FeO` and `Fe_2O_3`
`:. FeOFe = 2`
`Fe_2 O_3 Fe = 3`
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