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  • Oxidation states of the metals in the minerals chalcopyrite and bornite, respectively are:Option: 1 I, III in chalcopyrite and III in bornite</di

Oxidation states of the metals in the minerals chalcopyrite and bornite, respectively are:

Option: 1

I, III in chalcopyrite and III in bornite


Option: 2

I, III in chalcopyrite and II in bornite


Option: 3

I in chalcopyrite and II, III in bornite


Option: 4

II, II in chalcopyrite and I, II, III in bornite


Answers (1)

best_answer

The oxidation states of the metals in the minerals chalcopyrite and bornite, respectively, are as follows:

Chalcopyrite \left(\mathrm{CuFeS}_2\right) : The oxidation state of copper (\mathrm{Cu}) in chalcopyrite is +2 , and the oxidation state of iron (\mathrm{Fe}) is +2 .

Bornite \left(\mathrm{Cu}_5 \mathrm{FeS}_4\right) : In Bornite, the oxidation state of copper \left(\mathrm{Cu}\right) exists in two different states. Some copper atoms have an oxidation state of +1 , while others have an oxidation state of +3 . The oxidation state of iron (\mathrm{Fe}) in bornite is +2 .


Chalcopyrite: \mathrm{Cu} is +2, \mathrm{Fe} is +2 .
Bornite: \mathrm{Cu} is a combination of +1 and +3, \mathrm{Fe} is +2 .

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Divya Prakash Singh

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