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Question
In a stratosphere, which of the following element acts as a catalyst in the degradation of ozone and the release of molecular oxygen?
In a stratosphere, which of the following element acts as a catalyst in the degradation of ozone and the release of molecular oxygen?
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Solution
The correct option is B Cl
When chlorine and bromine atoms come into contact with ozone in the stratosphere, they destroy ozone molecules.
Chlorine atom reacts with an ozone (O3) molecule breaking it apart and so destroying the ozone. This forms an ordinary oxygen molecule(O2) and a chlorine monoxide (ClO) molecule. Then a free oxygen atom breaks up the chlorine monoxide. The chlorine is free to repeat the process of destroying more ozone molecules. A single CFC molecule can destroy 100,000 ozone molecules. So chlorine element acts as a catalyst in the degradation of ozone and the release of molecular oxygen.
When chlorine and bromine atoms come into contact with ozone in the stratosphere, they destroy ozone molecules.
Chlorine atom reacts with an ozone (O3) molecule breaking it apart and so destroying the ozone. This forms an ordinary oxygen molecule(O2) and a chlorine monoxide (ClO) molecule. Then a free oxygen atom breaks up the chlorine monoxide. The chlorine is free to repeat the process of destroying more ozone molecules. A single CFC molecule can destroy 100,000 ozone molecules. So chlorine element acts as a catalyst in the degradation of ozone and the release of molecular oxygen.
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