JEE Main 20207 Jan, Morning shiftChemistryEasyRedox Reactions and Electrochemistry138× since 2002Oxidation number of potassium in K₂O. K₂O₂ and KO₂ respectively is :AOption A. +1, +2 and + 4BOption B. +1, +1 and + 1COption C. +2, +1 and +12+ {1 \over 2}+21DOption D. +1, +4, and +2CheckSkip · show solution
