The correct arrangement of the species in the decreasing order of the bond length between carbon and oxygen in them is

Options

A. `CO, CO_2, HCO_2^(-), CO_3^(-2)`
B. `CO_2, HCO_2^(-), CO,CO_3^(-2)`
C. `CO_3^(-2), HCO_2^(-), CO_2, CO`
D. `CO, CO_3^(-2), CO_2, HCO_2^(-)`

Answer

C

Explanation

The type of bond gives a relative measure of the bond length.
Triple bond - shortest bond
Double bond – Intermediate between single and double bond
Single bond – longest bond