What is the oxidation number of sulfur in SO2?
+4 for sulfur
That depends on the compound that it is in but it is often found in the oxidation states 2-, 4+, and 6+. In its elemental for the oxidation state is 0, which is true of all elements. In sulfides, thiols, and similar compounds such as H2S, K2S, CH3SH and HSCN it s int the 2- oxidation state. In sulfur dioxide (SO2) and sulfites such as Na2SO3 and SrSO3 it is in the 4+ oxidation state…
SO2 is neutral. Please refer to the oxidation states. Since all oxidation numbers added together in a compound must equal zero. Which means that : S+(-2*2)=0, so S has an oxidation number as +4, in which O2 has an oxidation number of -2*2 = -4. Just find out the oxidation number of the compounds each time through equation and you'll know the charge. Easy.