COâ‚‚
Explanation:
Carbon dioxide is a covalent compound. Two double bonds are formed between two oxygen atoms and one carbon atom. O=C=O
The covalent bond between them are polar.
Covalent bond:
It is formed by the sharing of electron pair between bonded atoms. Â
The atom with larger electronegativity attract the electron pair more towards it self and becomes partial negative while the other atom becomes partial positive.
For example:
In carbondioxide the electronegativity of oxygen is 3.44 and carbon is 2.55. That's why electron pair attracted more towards oxygen, thus oxygen becomes partial negative and carbon becomes partial positive. Â The electronegativity difference is 0.89 that's why it is polar covalent bond.