Oxidation number of oxygen in o3 July 8, 2019 16 32 64 128 Oxidation number of oxygen in o3 molecule Oxidation number of oxygen in ozone o3 is Oxidation number of oxygen atom in o3 molecule is Oxidation number of io3- Oh oxidation number Oxidation number h2o2 S2o3 oxidation number Oxidation number of sulfur in h2so4