* Covalent Bond: Carbon and oxygen share electrons to form the bond. This sharing results in a stable configuration for both atoms.

* Polar: Oxygen is more electronegative than carbon. This means oxygen attracts the shared electrons more strongly, creating a slight negative charge (δ-) near the oxygen atoms and a slight positive charge (δ+) near the carbon atom. This uneven distribution of charge makes the bond polar.

Important Note: While the individual C-O bonds are polar, the molecule as a whole is linear and symmetrical. This means the polarities of the individual bonds cancel each other out, resulting in a nonpolar molecule.