Question

Which of the following elements form sulphides?

• A. As
• B. Bi
• C. Sb
• D. All of these

Answer 1

The correct option is D All of these

These elements tend to form many compounds with Sulphur. You might be able to recall from metallurgy that pyrites contain other trace sulphides like $B{i}_2{S}_3,A{s}_4{S}_4,A{s}_2{S}_3,S{b}_2{S}_3,FeAsS,NiSbS$ etc