Oxidation number of oxygen in potassium superoxide is

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$- 1.5$

$- 0.5$

answer is A.

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Detailed Solution

The superoxide is $O_{2}^{-}$ The oxidation number of oxygen in it is $- 0.5$

The total number of electrons that an atom acquires or loses in the process of joining with another atom to create a chemical bond is known as the oxidation number, also known as the oxidation state.

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