How many equivalent resonance forms can be drawn for SO₂ without expanding octet on the sulfur atom? (Sulfur is the central atom.) A)0 B)2 C)3 D)4 E)1

Question

Quizplus · Accepted Answer

SO₂ has two equivalent resonance forms where one of the oxygen atoms forms a double bond with sulfur, and the other oxygen has a single bond with sulfur, with the negative charge on the singly bonded oxygen. These forms are equivalent due to the symmetry of the molecule.

How Many Equivalent Resonance Forms Can Be Drawn for SO2

How Many Equivalent Resonance Forms Can Be Drawn for SO₂