Chemistry · Environmental Chemistry
The statement that is NOT true about ozone is:
- 1It is a toxic gas and its reaction with NO gives NO2.
- 2In the stratosphere, it forms a protective shield against UV radiation.
- 3In the atmosphere, it is depleted by CFCs.
- 4In the stratosphere, CFCs release chlorine free radicals (Cl) which react with O3 to give chlorine dioxide.✓
Correct answer
In the stratosphere, CFCs release chlorine free radicals (Cl) which react with O3 to give chlorine dioxide.
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