GENERAL KNOWLEDGE

Detailed explanation-1: -Capillary action occurs because water is sticky, thanks to the forces of cohesion (water molecules like to stay close together) and adhesion (water molecules are attracted and stick to other substances).

Detailed explanation-2: -Capillary action occurs when intermolecular adhesive forces between a liquid and another substance are stronger than the cohesive forces between liquid molecules. Water is adhesive to the glass capillary tubes due to hydrogen bonding.

Detailed explanation-3: -Cohesive force: It is the intermolecular bonding of a substance where its mutual attractiveness forces them to maintain a certain shape of the liquid. Surface tension: This occurs as a result of like molecules, cohesive forces, banding together to form a somewhat impenetrable surface on the body of water.

Detailed explanation-4: -Adhesion is caused by electrostatic or mechanical forces that exist among two kinds of different substances. Cohesion is caused by hydrogen bonding and Van der Waals forces.

Detailed explanation-5: -We can define capillary action as a phenomenon where ascension of liquids through a tube or cylinder takes place. This primarily occurs due to adhesive and cohesive forces. The liquid is drawn upward due to this interaction between the phenomena. Narrower the tube, higher will the liquid rise.