Concept:Cohesion is the intermolecular force of attraction that holds molecules of the same substance together.
Explanation:Molecules exert attractive forces on one another, and these forces are described by the type of molecules involved.
The force of attraction between molecules of the same substance is specifically called cohesion.
For example, water molecules attract other water molecules through cohesive forces, which is why water forms droplets.
Adhesion, on the other hand, refers to the attraction between molecules of different substances, such as water sticking to glass.
Capillarity is the rise or fall of a liquid in a narrow tube due to the combined effects of cohesion and adhesion.
Surface tension is a surface effect produced by cohesive forces, but it is not the name of the attractive force itself.
Since the question states that the molecules belong to the same substance, the correct physical term is cohesive force, also called cohesion.
Answer:A. Cohesion