Oxidation number of potassium in
Question:
Oxidation number of potassium in $\mathrm{K}_{2} \mathrm{O}, \mathrm{K}_{2} \mathrm{O}_{2}$ and $\mathrm{KO}_{2}$, respectively, is :
Correct Option: , 3
Solution:
Potasisum has an oxidation of $+1$ (only) in combined state.