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Soap helps in cleaning clothes, because...

Soap helps in cleaning clothes, because

A

Chemical s of soap change

B

it increase the surface tension of the solution

C

It absorbs the dirt

D

it lowers the surface tension of the solution

Text Solution

Verified by Experts

The correct Answer is:
D
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ERRORLESS -SURFACE TENSION-Exercise
  1. Surface tension is due to

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  2. When there is no external force, the shape of a liquid drop is determi...

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  3. Soap helps in cleaning clothes, because

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  4. When a greased iron needle is placed gently on the surface of water at...

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  5. Coating used on raincoat are waterproof because

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  6. If temperature increases, the surface tension of a liquid

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  7. A drop of oil is placed on the surface of water. Which of the followin...

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  8. The temperature at which the surface tension of water is zero (1) 37...

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  9. A small air bubble is at the inner surface of the bottom of a beaker f...

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  10. The spider and insect move and run about on the surface of water witho...

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  11. Small droplets of a liquid are usually more spherical in shape than la...

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  12. When a shaving brush is taken out of water its hair cling together, wh...

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  13. A square wire frame of side L is dipped in a liquid. On taking out , a...

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  14. Water does not wet an oily glass because

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  15. A water drop takes the shape of a sphere in a oil while the oil drop s...

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  16. Which of the fact is not due to surface tension

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  17. In the glass capillary tube, the shape of the surface of the liquid de...

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  18. Force necessary to pull a circular plate of 5cm radius from water surf...

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  19. The property of surface tension is obtained in

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  20. The surface tension of a liquid with rise of temperature.

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