Oxidation number of h2 in h2s July 8, 2019 16 32 64 128 Oxidation number of h2 in h2so4 Oxidation number of h2 in h2s2o7 Oxidation number of h2 in h2s2o8 The oxidation number of sulphur in s8 h2 f2 h2s respectively are Oxidation number h2o2 H2s2o3 oxidation number Oxidation number of sulfur in h2so4