Forces at the molecular interface between oil and water are known as _____ forces

a. van der Waals c. Cohesive
b. Hydrostatic d. Adhesive

ANS: C
Surface tension is generated by the cohesive forces of molecules at a gas-liquid interface or at the interface of two immiscible liquids, such as oil and water. Adhesive forces are attractive forces between two different kinds of molecules, and van der Waals forces are physical intermolecular forces that cause molecules to be attracted to each other.