Final answer:
A bond with an uneven distribution of electrons causing opposite partial charges on adjacent molecules is known as a polar covalent bond.
Step-by-step explanation:
The bond in which the molecules of a liquid have an uneven distribution of electrons that leads to electrical attraction between adjacent molecules of opposite polarity is known as a polar covalent bond. In a polar bond, the bonding electrons are shared unequally between two atoms, which results in partial charges on the atoms involved. For example, the water molecule (H2O) has a classic polar covalent bond, leading to a dipole moment because of the different electronegativities of hydrogen and oxygen atoms, with the oxygen pulling the shared electrons more towards itself.