question_answer

The bond order in \[CO_{3}^{2-}\]ion between \[C-O\] is [Pb. PMT 2004]

A)                 Zero      

B)                 0.88

C)                 1.33       

D)                 2

Correct Answer: C

Solution :

           We know that carbonate ion has following resonating structures                    Bond order \[=\frac{\text{Total number of bonds between atoms}}{\text{Total number of resonating structure}}\]                                                   \[=\frac{1+1+2}{3}=\frac{4}{3}=1.33\].