What is oxidation number of sulphur in h2s2o8 July 8, 2019 16 32 64 128 Average oxidation number of sulphur in h2s2o8 The oxidation number of sulphur in h2s2o8 h2s2o4 h2s2o6 are respectively Oxidation number of sulfur in h2so4 H2s2o3 oxidation number What is oxidation number How to find oxidation number in equation