Question

what is polymorphic form of sulfur

Answer 1

The most common polymorphic form of sulfur is the orthorhombic polymorph of S8. The component sulfur subsists as many allotropes. Regarding a large number of allotropes, sulfur is second only to carbon. In addition to the allotropes, any allotrope often subsists in polymorphs, described by Greek prefixes (α, β, etc.).