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Oxidation numbers of the metal in the mi...

Oxidation numbers of the metal in the minerals haematite and magneetite respectively are:

A

II,III in haematite and III in magnetite

B

II, III in haematite and II in magnetite

C

II in haematitie and II,III in magnetite

D

III in haematitie and II, III in magnetitie

Text Solution

Verified by Experts

The correct Answer is:
D
In haematite `(Fe_(2)O_(3))`, oxidation number of
Fe:2x+3(-2)=0,x=+3
In magnetitte `(Fe_(3)O_(4))` is a mixed oxide of FeO and `Fe_(2)O_(3)`
In FeO,the oxidation number of Fe: x-2=0 or x=+2
In `Fe_(2)O_(3)`O,the oxidation number of Fe: 2x+3(-2) =0 or x=+3
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