Sulphur has an oxidation number of +4 in? by Sunday | Apr 17 | Chemistry NECO | 0 comments A. H2S B. H2SO4 C. MgSO4 D. Na2SO3 E. S03 Correct Answer: Option D – Na2SO3 Users Also Read These:Uranium of atom number 92 and mass number 238 emits…The oxidation number of sulphur changes from?Determine the mass of sulphur (IV) oxide obtained…Which of the following oxides of nitrogen has…The oxidation number of sulphur in Fe2(SO4)3 is?