CHEMISTRY · Single correct · CBSE · Chemistry · Chemical Bonding and Molecular Structure · Chemical Bonding and Molecular Structure
Problem
The carbonate ion, CO₃²⁻, is described by three equivalent resonance structures, each containing one C=O double bond and two C–O single bonds. Considering the resonance hybrid, what is the total number of σ bonds and π bonds present in the ion?
(a) 3 σ bonds and 1 π bond
(b) 3 σ bonds and 3 π bonds
(c) 4 σ bonds and 1 π bond
(d) 3 σ bonds and 2 π bonds