. Which of the following has pπ dπ bonding
Correct Option is: (B)
The central atom Sulphur is sp3 hybridised in sulphite ion. Electronic structure of S atom in excited state
The three p electrons form bonds with three oxygen atoms - with one position (of the tetrahedron) being occupied by a lone pair. The d electron (excluded from hybridisation) forms bond with one oxygen atom. i.e., pπ - d bonding occurs.