TS EAMCET 14-Sep-2020 Shift 2 Solved Paper

Out of given four elements C,S,Fe and Au, the non-metals C and S exist in elemental form as allotropes. Au is a less active metal. It also exists in nature as elemental form, called nugget.
Fe is an electropositive metal.So, it exists in earth's crust in combined state (compounds),
e.g. Fe2O3,Fe3O4,FeS2 etc.