what force in liquids causes surface tension?\ncovalent forces\nintermolecular forces\nintramolecular…

Brief Explanations:

Surface tension in liquids is due to unbalanced intermolecular forces at the surface. Molecules in the bulk of the liquid are surrounded by other molecules and have balanced forces, while surface - molecules have a net inward pull from the molecules below the surface. Covalent, intramolecular, and ionic forces act within a molecule, not to cause surface tension.

Answer:

B. intermolecular forces