General Knowledge - Basic General Knowledge - Discussion

Adhesion is the tendency of dissimilar particles or surfaces to cling to one another (cohesion refers to the tendency of similar or identical particles/surfaces to cling to one another). The forces that cause adhesion and cohesion can be divided into several types. The intermolecular forces responsible for the function of various kinds of stickers and sticky tape fall into the categories of chemical adhesion, dispersive adhesion, and diffusive adhesion. In addition to the cumulative magnitudes of these intermolecular forces, there are also certain emergent mechanical effects.

Free surface of a liquid behaves like a sheet and tends to contract to the smallest possible area due to the force of cohesion. The force of cohesion is defined as the force of attraction between molecules of the same substance.

Cohesion means force of attraction between same molecules of a liquid. So, the free surface of a liquid behaves like a sheet and tends to contract to the smallest area.

Surface Tension is also one of the answer.

Cohesive force is partially responsible for this but the major role for this is played by surface tension. Since surface tension is not in the options. So, the right answer will be cohesive force.

Surface tension is borne out of the cohesion forces existing between the similar molecules of the liquid. It is nothing but the consequence of cohesion forces. Hence the answer is correct.

The correct answer is cohesion that means the same kind of particle are attract to each other that leads to they are adjust in a minimum possible area. That also called as surface tension.

It is objectionable to call it surface tension because cohesion & adhesion are types of surface tension.
So to be more specific, cohesion is the right answer.

The correct answer is surface tension. And both forces are related with it, so cohesion is more correct than adhesive force.

Cohesive force takes place only in high density fluids like mercury. Only surface tension could cause this effect.

Cohesive force is nothing but attraction of liquid molecules. So it causes smallest possible area of the liquid.