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Q: A drop of a fluid is combined because the attraction of its particles minimizes its possible area. This phenomenon is called-
  • A. Surface tension
  • B. Excess
  • C. Capillary action
  • D. Viscosity
Correct Answer: Option A - Surface tension is the tendency of liquid surface to shrink in to minimum surface area. Surface tension is a surfaces tendency to contract to the smallest possible area because of unbalanced cohesive force between molecule at the surface.
A. Surface tension is the tendency of liquid surface to shrink in to minimum surface area. Surface tension is a surfaces tendency to contract to the smallest possible area because of unbalanced cohesive force between molecule at the surface.

Explanations:

Surface tension is the tendency of liquid surface to shrink in to minimum surface area. Surface tension is a surfaces tendency to contract to the smallest possible area because of unbalanced cohesive force between molecule at the surface.