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

mercury is a metal

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density of mercury is greater than that of water

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cohesion of mercury is greater than its adhesion with glass

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cohesion of water is greater than its adhesion with glass

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Solution

The correct option is C cohesion of mercury is greater than its adhesion with glass
Option:(c)

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Similar questions

Explain why

(a) The angle of contact of mercury with glass is obtuse, while that of water with glass is acute.

(b) Water on a clean glass surface tends to spread out while mercury on the same surface tends to form drops. (Put differently, water wets glass while mercury does not.)

(d) Water with detergent dissolved in it should have small angles of contact.

(e) A drop of liquid under no external forces is always spherical in shape

Q. A drop of water or mercury on a clean glass plate is circular in shape. Why?

Q. Mercury weighs more than water. Would the pressure exerted by water is greater or less than the pressure exerted by the same amount of mercury?

Q. Spray some mercury and some water on a glass surface. It will be observed that mercury forms _______ drops while water _______.

Q. Assertion (A): The angle of contact of pure water with glass is acute.
Reason (R): The adhesive force between molecules of water and glass is greater than cohesive force between water molecules.

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

The correct option is C cohesion of mercury is greater than its adhesion with glassOption:(c)

The correct option is C cohesion of mercury is greater than its adhesion with glass
Option:(c)