Question

How to find out KO3 oxidation number

Answer 1

That doesn't seem like an existing compound,

Ths closest is KO2 with +1 on K and -1/2 on O2.

But if this is to be considered, K always has ON +1.

Thus Oxygen shall have (0-1)/3 = -1/3

Answer 2

Answer:

Explanation:

KO3 exist in the following way

The oxidation number of K is +1

Hence oxidation number of O is X

X+1=0

X=-1

Hope it helps...