• # question_answer 4) Explain the structure of $C{{O}_{2}}$ molecule.

Electron dot structure of $C{{O}_{2}}$ molecule is given below: Carbon-oxygen bond length in $C{{O}_{2}}$ molecule is 115 pm. It is intermediate between $(C=O)$ and $(C\equiv O)$bonds. Thus, the structure of $C{{O}_{2}}$ is best described as a resonance hybrid of the following canonical forms.