1.

Oxidation state of the metal in the mineral heamatic and magnerite respectively areA. `+2,+3` in hematite and `+3` in magnetiteB. `+2,+3` in hematite and `+2` in magnetiteC. `+2,` in hematite and `+2, +3` in magnetiteD. `+3` in hematite and `+2, +3` in magnetite

Answer» Correct Answer - d
`Haematite rArr Fe_(2)O_(3) rArr Fe(+3)`
`Magnetic rArr Fe_(2) O_(4) rArr FeO rArr FeO Fe_(2)O_(3) rArr Fe(+2) ,Fe(+3)`


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