Question

Formula. to calculate oxidation state of an element

Answer 1

EXAMPLE- To find oxidation state of oxygen in KO2

let oxidation number of oxygen be x, and we know that the oxidation state of K is +1

Therefore, 1+2x=0 as K=+1 and KO2 is a neutral molecule so oxidation state =0.

The oxidation number of oxygen in KO2 is -1/2.