On a clean glass plate a drop of water spreads to form a thin layer whereas a drop of mercury remains almost spherical because

A Mercury is a metal
B Density of mercury is greater than that of water
C Cohesion of mercury is greater than its adhesion with glass
D Cohesion of water is greater than its adhesion with glass

Correct Answer: Cohesion of mercury is greater than its adhesion with glass

On a clean glass plate a drop of water spreads to form a thin layer whereas a drop of mercury remains almost spherical because cohesion of mercury is greater than its adhesion with glass.

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