The force of attraction applied between molecules of the same substance is called:

Correct option is B

The correct answer is (b) cohesive force.
· Cohesive force: This is the force of attraction between molecules of the same substance. It is responsible for the phenomena such as surface tension in liquids.
· Capillarity: This is the ability of a liquid to flow in narrow spaces without the assistance of external forces (like gravity). It results from the combination of cohesive and adhesive forces.
· Surface tension: This is a manifestation of cohesive forces, leading to the formation of a 'skin' on the surface of a liquid, which allows it to resist external forces.
· Adhesive force: This is the force of attraction between molecules of different substances.