* Presence of an Oxygen Atom: The oxygen atom in the carboxyl group (-COOH) is highly electronegative. This means it pulls electrons towards itself, creating a partial negative charge (δ-) on the oxygen and a partial positive charge (δ+) on the carbon atom in the carboxyl group.
* Asymmetry: The molecule's overall structure is asymmetrical. This uneven distribution of charge makes the molecule polar.
* Hydrogen Bonding: The hydrogen atom in the carboxyl group can participate in hydrogen bonding with other molecules, further contributing to its polar nature.
In contrast, nonpolar molecules have an even distribution of charge and do not form hydrogen bonds.
