Question

Sulphur when warmed with nonmetal in the absence of air, forms a mixture of nonmetallic trisulphide and pentasulphide. Identify the nonmetal and give the reaction.

Answer 1

Phosphorus when warmed with sulphur in absence of air, gives mixture of trisulphide and pentasulphide.

$P_4+S_8⟶P_2{S}_3+P_2{S}_5$