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Question: Answered & Verified by Expert
$\mathrm{CFCl}_3$ is responsible for the decomposition of ozone to oxygen. Which of the following reacts with ozone to form oxygen?
ChemistryEnvironmental ChemistryTS EAMCETTS EAMCET 2006
Options:
  • A $\mathrm{Cl}_2$
  • B $\mathrm{Cl}^{-}$
  • C $\mathrm{F}^{-}$
  • D $\mathrm{Cl}^*$
Solution:
1319 Upvotes Verified Answer
The correct answer is: $\mathrm{Cl}^*$
CFC (Chlorofluorocarbons) are causing depletion of ozone in the stratosphere. This occurs because ultra violet light also causes CFC's to decompose, producing atomic chlorine. The chlorine atoms react with ozone molecules, resulting in a net removal of $\mathrm{O}_3$ molecules from the stratosphere.

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