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Ozone is used for purifying water becaus...

Ozone is used for purifying water because

A

It dissociates and release oxygen

B

It does not leave any foul smell like chlorine

C

It kills bacteria, cyst, fungi and acts as a biocide

D

All of the above

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The correct Answer is:
D
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CENGAGE CHEMISTRY ENGLISH-P-BLOCK GROUP 16 ELEMENTS - THE OXYGEN FAMILY-Exercises Single Correct
  1. Which requires catalyst ?

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  2. In the reaction, 2 KI + H2 O + O3 rarr 2 KOH + O2 + A The compound...

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  3. Sulphur does not exist as S2 molecule because

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  4. Excess of PCl5 reacts with conc. H2 SO4 gives

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  5. The element evolving two different gases on reaction with conc. H2 SO4...

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  6. Define Rancidity. Give two measures to prevent it.

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  7. The correct order of the O-O bond length in O2, H2O2 and O3 is

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  8. Which of the following is not correct ?

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  9. The number of sigma and pi bonds in peroxydisulphuric acid are, respec...

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  10. Tailing of mercury test can be used for which of the following gas ?

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  11. Which of the following solutions does not change its colour on passing...

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  12. The function of Fe(OH)3 in the contact process is

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  13. The acid used in lead storage cells is

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  14. Hydrolysis of one mole of peroxodisulphuric acid produces

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  15. All the elements of oxygen family are

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  16. When an inorganic compound reacts with SO2 in aqueous medium produces ...

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  17. Ozone is used for purifying water because

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  18. Identify the correct order of increasing number of pi-bonds in structu...

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  19. Sulphur reacts with chlorine in 1:2 ratio and forms X Hydrolysis of X ...

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  20. Which gas is used to improve the atmosphere of the crowded places ?

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