- Sulfur (S): 0.
Sulfur forms two single bonds with two chlorine atoms, and both bonds are covalent in nature. Therefore, the oxidation number of sulfur is 0.
- Chlorine (Cl): -1.
Chlorine forms a single covalent bond with sulfur. Since chlorine is more electronegative than sulfur, it attracts electrons towards itself, resulting in a partial negative charge. Hence, the oxidation number of chlorine is -1.