NCERT Exercise 4.11 - Chemical Bonding and Molecular Structure
Question: Explain resonance using the carbonate ion, CO3^2-.
Answer: CO3^2- is represented by three equivalent canonical forms, each with one C=O and two C-O- bonds. The real ion is a resonance hybrid with three identical C-O bonds of bond order 1 1/3.
Full step-by-step NCERT solution with diagrams on Something by Zero.