Question

The `S-O-S` bonds in the trimer of SO3 are X and number of Ppi-dpi bonds are Y.Report your answer as X+Y

Answer 1

Answer:

Lone pairs= (1/2)×(valence electrons - bonding electrons)

σ bonds= no. of surrounding atoms

π bonds= (no. of oxygen atoms) - (no. of negative charge)

Hybridization = σ bonds + no. of lone pairs

Now, no. of pπ-pπ bonds= no. of unhybridised p orbitals left

pπ-dπ bonds will be formed when π bonds are more than the no. of unhybridised p orbitals left. First pπ-pπ bonds are formed after that pπ-dπ if there are not enough p orbitals left for mutiple bond formation.