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Why ozone is used in improving the atmos...

Why ozone is used in improving the atmosphere of crowded places such as cinema halls, tube railway, etc.?

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Being a germicide and disinfactant, it helps in purifying air of crowded places like cinema halls, underground railways,etc.
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Which gas is used to improve the atmosphere of the crowded places ?

Ozone is an unstable, dark blue diamagnetic gas. It absorbs strongly the UV radiation, thus protecting the people on the earth from the harmful UV radiation from the sun. The use of chlorofluorocarbon (CFC) in aerosols and refrigerators, and their subsequent escape into the atmosphere, is blamed for making holes in the ozone layer over the Antarctic, and Arctic. Ozone acts as a strong oxidizing agent in acidic and alkaline medium. For this property ozone is used as a germicide and disinfectant for sterilizing water and improving the atmosphere of crowded places. which of the following statements is correct ?

Ozone is an unstable, dark blue diamagnetic gas. It absorbs strongly the UV radiation, thus proteching the people on the earth from the harmful UV radiation from the sun. The use of chloroflurocarbon (CFC) in aeroslos and refrigrators, and their subsequent escape into the atomsphere, is blamond for making holes in the ozone layer over the Antarctic, and Arctic. Ozone acts as a strong oxdising agent in acidic and alkaline medium. For this property ozone is used as a germicide and disinfectant for sterillising water and improving the atmosphere of croweded places. CFC damages ozone layer by reactions :

Why mercury is used in barometer for measuring atmospheric pressure?

Ozone is an unstable, dark blue diamagnetic gas. It absorbs strongly the UV radiation, thus proteching the people on the earth from the harmful UV radiation from the sun. The use of chloroflurocarbon (CFC) in aeroslos and refrigrators, and their subsequent escape into the atomsphere, is blamond for making holes in the ozone layer over the Antarctic, and Arctic. Ozone acts as a strong oxdising agent in acidic and alkaline medium. For this property ozone is used as a germicide and disinfectant for sterillising water and improving the atmosphere of croweded places. Identify the incorrect statement with respect to ozone.

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Why is it that during changing weather, one is advised to avoid closed, crowded and air conditioned places like cinema halls etc?

Formation of ozone in the upper atmosphere from oxygen takes place by the action of

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ICSE-P-BLOCK ELEMENTS-EXERCISE (PART-II)(DESCRIPTIVE QUESTIONS)(VERY SHORT ANSWER QUESTIONS)
  1. What is ozonolysis ?

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  2. Why is O-O bond length in ozone (128 pm) more than in O2 (122 pm)?

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  3. Why ozone is used in improving the atmosphere of crowded places such a...

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  4. Write balanced chemical equations for the preparation of SO2 from a s...

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  5. Why quicklime is not used for drying SO2?

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  6. What is produced when SO2 is dissolved in water?

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  7. Name one substance which can be used as a catalyst in the formation of...

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  8. Write one chemical equation to show that SO2 acts as a reducing agent...

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  9. What happens when SO2 reacts with Cl2 : (i) in presence of sunlight....

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  10. SO2 acts as a bleaching agent. How?

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  11. Dry SO(2) does not bleach dry flowers because

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  12. Why does SO2 exhibit bleaching action only in presence of water?

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  13. What happens when H2S reacts with SO2 ?

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  14. What happens when SO2 is passed through caustic soda solution ?

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  15. What is the bond angle in SO2 ?

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  16. State the name of anhydride of H2SO4.

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  17. Why sulfuric acid is described as king of chemicals ?

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  18. Why sulfuric acid is also known as oil of vitriol?

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  19. Why the process of manufacture of H2SO4 is named contact process ?

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  20. In the the manufacture of sulphuric acid by the Contact process ,give ...

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