Question

Which of the following statement is not true about angle of contact?

• A. The value of angle of contact for pure water and glass is zero.
• B. Angle of contact increases with increase in temperature of liquid.
• C. If the angle of contact of a liquid and a solid surface is less than 90°, then the liquid spreads on the surface of solid.
• D. Angle of contact depend upon the inclination of the solid surface to the liquid surface.

Answer 1

Answer: (D)

Angle of contact depend upon the inclination of the solid surface to the liquid surface.

Answer 2

Angle of contact does not depend upon the inclination of the solid surface to the liquid surface.