Surface Tension MCQ Questions and Answers Quiz

11. On increasing the temperature, the surface tension of the liquid

  1. Increases
  2. Decreases
  3. Remains constant
  4. None of the mentioned

12. Potential energy of a molecule on the surface of a liquid is as compare to another molecule inside of the liquid is

  1. More
  2. Less
  3. Both a and b
  4. None of these

13. Rain drops are spherical because of

  1. Gravitational force
  2. Surface tension
  3. Air resistance
  4. Low viscosity of water

14. Select the incorrect statement from the following option.

  1. In case of mercury and glass, we observe a convex meniscus
  2. Surface tension is responsible for the rise and fall of the capillary tubes
  3. If two drops encounter each other, they tend to repel each other
  4. All of the mentioned

15. Shapes of drops of liquid are spherical because of

  1. Viscosity
  2. Conductivity
  3. Absorption
  4. Surface tension

16. Stalagmometer is cleaned to remove grease with the help of

  1. Chromic acid
  2. Sulphuric acid
  3. Distilled water
  4. Tartaric acid

17. Surface tension of liquid is independent of the

  1. Temperature of the liquid
  2. Area of the liquid surface
  3. Nature of the liquid
  4. Impurities present in the liquid

18. The angle of contact for liquid on a solid surface is the angle between:

  1. the tangent to the liquid surface at the point of contact and the solid surface
  2. the tangent to the solid surface at the point of contact and the liquid surface
  3. the liquid surface and the solid surface at the point of contact
  4. none of the above.

19. The apparatus used for the determination of surface tension of a liquid is

  1. Oedometer
  2. Stalagmometer
  3. Consolidometer
  4. None of the mentioned

20. The pressure just below the meniscus of water

  1. Is greater than just above it
  2. Is less than just above it
  3. Is same as just above it
  4. Is always equal to atmospheric pressure.
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