Question

What is the bond order of ${\mathrm{CO}}_2$?

Answer 1

Bond Order

• “In the Lewis description of covalent bond, the Bond Order is given by the number of bonds between the two atoms in a molecule”.
• The mathematical formula for bond order is as follows,
• $\mathrm{Bond}\mathrm{order}(\mathrm{B}.\mathrm{O}.)=\frac{\mathrm{Total}\mathrm{number}\mathrm{of}\mathrm{bonds}}{\mathrm{Number}\mathrm{of}\mathrm{sigma}\mathrm{bonds}}$

Calculation of bond order of ${\mathrm{CO}}_2$

$$\begin{gathered} \mathrm{Bond}\mathrm{order}(\mathrm{B}.\mathrm{O}.)=\frac{\mathrm{Total}\mathrm{number}\mathrm{of}\mathrm{bonds}}{\mathrm{Number}\mathrm{of}\mathrm{sigma}\mathrm{bonds}} \\ =\frac{4}{2} \\ =2 \end{gathered}$$