Question

Which of the following liquid will give a capillary depression

• A. Mercury
• B. water
• C. kerosene
• D. petrol

Answer 1

Answer:

A. Mercury

• Capillary Depression: This occurs when a liquid does not wet the surface of the tube.

• Mercury is the standard example of a liquid that exhibits capillary depression because it does not wet glass.

• Liquids like water, petrol, and alcohol wet glass and therefore exhibit a capillary rise instead.