Mark the incorrect statement about chlorofluorocarbons.

Question

Mark the incorrect statement about chlorofluorocarbons., The balance between the production and degradation of ozone has been affected by CFCs., CFCs are commonly used as refrigerants., CFCs are broken down into Cl atoms by UV rays in the troposphere, from where they travel upwards to the stratosphere and degrade the ozone layer., Cl atoms act as catalysts in the reaction, therefore they do not get consumed and continue to affect the ozone level.

MARKS App · Accepted Answer

There should be a balance between production and degradation of ozone in the stratosphere. Of late, the balance has been disrupted due to enhancement of ozone degradation by chlorofluorocarbons (CFCs). CFCs find wide use as refrigerants. CFCs discharged in the lower part of the atmosphere move upwards and reach the stratosphere. In the stratosphere, UV rays act on them releasing Cl atoms. Cl degrades ozone, releasing molecular oxygen. With these atoms acting merely as catalysts, Cl atoms are not consumed in the reaction. Hence, whatever CFCs are added to the stratosphere, they have permanent and continuing effects on ozone levels.

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