Uh, wait, what? Oxidation state of KO2?

[pfaction]

TPR: Which has a higher oxidation state:
KO2
FE2O3

How is O2 a negative one only, I thought that was peroxides. Huh?

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[Jamie561]

TPR: Which has a higher oxidation state:
KO2
FE2O3

How is O2 a negative one only, I thought that was peroxides. Huh?

Wat? This is a superoxide.

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[pfaction]

I'm verbatim quoting from TPR; K+1 and O2 -1. I put KO2 because it should be what, +4/-4? Trumping +3/-6...

 

[Jamie561]

If you thought that potassium can exist in a +4 oxidation state, you done goofed. O2- is called superoxide. I am not sure why you are so confused.

Edit: prz to Google superoxide

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