In a compound of sulphur, the sulphur atom is in second excited state. The possible hybridisation of sulphur is

In a compound, the hybridization of an atom is determined by its electron configuration, which in turn is determined by its excited state. The excited state of an atom refers to the state in which one or more electrons are in a higher energy level than the ground state.

The electron configuration of a sulphur atom in its second excited state is 1s² 2s² 2p⁶ 3s² 3p⁴ 3d¹. To determine the hybridization of sulphur in a compound, we need to count the number of electron groups (bonding and non-bonding) around the sulfur atom.

In this case, there are six electron groups around the sulfur atom, which consist of four bonding pairs and two lone pairs. To accommodate these electron groups, the sulfur atom undergoes sp³d² hybridization.

Therefore, the possible hybridization of sulfur in a compound when it is in its second excited state is sp² (or) sp³ (or) sp³d².