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Standard XII
Chemistry
Greenhouse Effect
Question

Which of the following statements about ozone is true?
  1. The conversion of ozone to oxygen is an endothermic reaction
  2. Ozone is triatomic linear molecule
  3. Ozone layer is beneficial to us because ozone cuts the ultraviolet radiation of the sun
  4. Ozone layer is harmul as it cuts out radiation useful for photosynthesis

A
Ozone is triatomic linear molecule
B
The conversion of ozone to oxygen is an endothermic reaction
C
Ozone layer is beneficial to us because ozone cuts the ultraviolet radiation of the sun
D
Ozone layer is harmul as it cuts out radiation useful for photosynthesis
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Solution
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As ozone absorbs high energy UVB and UVC energy waves from the sun and is broken down into atomic oxygen (O) and diatomic oxygen. Atomic oxygen is found prevalent in the upper stratosphere due to the bombardment of UV light and the destruction of both ozone and diatomic oxygen.

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