An unbalanced cohesive force experienced by molecules on the surface of the liquid is responsible for the _______.
A
Buoyant force
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B
Thrust force
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C
Surface tension
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D
Unbalanced normal force
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Solution
The correct option is C Surface tension An unbalanced cohesive force experienced by molecules on the surface of the liquid is responsible for the surface tension. The tension of the surface film of a liquid caused by the attraction of the particles in the surface layer by the bulk of the liquid, which tends to minimize the surface area is also known as surface tension.