Oxidation number of hydrogen h2o2 July 8, 2019 16 32 64 128 Oxidation number of oxygen in hydrogen peroxide h2o2 is Oxidation number of hydrogen and oxygen in h2o2 H2o2 oxidation number of hydrogen peroxide Calculate the oxidation number of hydrogen in h2o2 O2 + h2 H2s2o3 oxidation number