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Identify the least effective method for ...

Identify the least effective method for the removal of germ from water.

A

Boiling

B

Exposure to air and sunlight

C

Chlorination

D

Ozonization

Text Solution

Verified by Experts

The correct Answer is:
B
Exposure to air and sunlight is the least effective method for the removal of germs from water as sunlight cannot enter into the deeper layers of water.
Hence, the correct option is (b).
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PEARSON IIT JEE FOUNDATION-WATER-A WONDER LIQUID -Test Your Concepts (Very Short Answer) Fill in the blanks
  1. In very cold places, water vapour condenses to produce""

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  2. The specific heat capacity of water is

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  3. The value of latent heat of fusion of ice is ""

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  4. The density of pure water at 4^(@)C is ""

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  5. The rain water is devoid of "" impurities

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  6. The water fit for human consumption is called ""

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  7. Water acts as a " "solvent.

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  8. ""and" " gases are present in dissolved state in natural water.

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  9. When vaporization and condensation of water are carried out simultaneo...

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  10. A solution which cannot dissolve any more amount of solute in it is ca...

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  11. The liquid obtained by the condensation of vapour is called

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  12. Purification of drinking water in cities involves passing water throug...

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  13. The settling down of suspended matter at the bottom of a liquid is kno...

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  14. The removal of germs from water is called

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  15. "" proved that water is compound containing hydrogen and oxygen.

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  16. Which of the following is considered to be a method of sterilization?

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  17. Addition of which substance hastens the process of sedimentation in wa...

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  18. Ozonization of water removes which of the following impurities?

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  19. Identify the least effective method for the removal of germ from water...

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  20. Which of the following water samples is used in car batteries?

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