What is the oxidation number and oxidation state of potassium in ko2?

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Solution

Dear Student,

Oxidation number is the total number of electrons that an atom either gains or loses in order to form a chemical bond with another atom. It is also called Oxidation State.

Potassium is an alkali metal. It can lose only one electron.
Its oxidation state can be 0 (in metallic form) and +1 (in its compounds)

In KO₂, potassium combines with superoxide ion (O₂^-).
Oxidation state of K is +1, of O is -1/2.

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