Question

The bond order in $C{O}_3^{2-}$ ion between

• A. zero
• B. 0.88
• C. 1.33
• D. 2

Answer 1

Answer: (C)

We know that carbonate ion has following resonating structures
Border order $=\frac{totalnumberofbondsbetweenatoms}{totalnumberofresonatingstructures}$ $=\frac{1+1+2}{3}=\frac{4}{3}$ $=1.33$