Question

Water held by fine-grained soil particles due to electrochemical force of adhesion is known as:

• A. Free water
• B. Capillary water
• C. Structural water
• D. Adsorbed water

Hint:

For soil water classification: - Adsorbed water: Electrochemical adhesion. -Capillary water: Held in pores by surface tension. - Free water: Gravitational water.

Answer 1

The Correct Option is D

Adsorbed water is held tightly by soil particles due to electrochemical forces. It forms a thin layer around the particles and is immobile. This type of water does not contribute to the flow of water in soil but plays a significant role in soil cohesion and structure.