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- Which of the following statements about the depletion of ozone layer is correct?Option: 1 The problem of ozone depletion is less serious a
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Which of the following statements about the depletion of ozone layer is correct?
Option: 1
The problem of ozone depletion is less serious at poles because NO2 solidifies and is not available for consuming ClO• radicals.
Option: 2
The problem of ozone depletion is more serious at poles because ice crystals in the clouds over poles act as catalyst for photochemical reactions involving the decomposition of ozone by Cl• and ClO• radicals.
Option: 3
Freons, chlorofluorocarbons, are inert chemically, they do not react with ozone in stratosphere.
Option: 4
Oxides of nitrogen also do not react with ozone in stratosphere.
Answers (1)
Now, polar stratospheric clouds are made of nitric acid and water crystals which act as a catalyst for ozone depletion.
Therefore, option (2) is correct.
View full answer
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