how to calculate the oxidation number of Fe and S in compound  FeS2 ?  please explain briefly. i am in great trouble

Asked by ppratim02 | 29th Apr, 2015, 11:05: AM

Expert Answer:

The iron and sulfur atoms in FeS2 are arranged as Fe–S–S rather than S–Fe–S. begin mathsize 11px style straight S subscript 2 superscript negative 2 end superscript end style is the persulfide. In FeS2, iron is assigned an oxidation number of 2+, since persulfide has an oxidation number of −2, where each sulfur atom is assigned an oxidation number of -1.

Answered by Arvind Diwale | 30th Apr, 2015, 08:31: AM