Which of the following is not true about ozone
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The statement that is not true about ozone is : (1) in the stratosphere, it forms a protective shield against UV radiation. (2) it is a toxic gas and its reaction with NO gives NO2 . (3) in the atmosphere, it is depleted by CFCs.
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Answer: C
Explanation:
O3 oxidises SnCl2 and SO2 and SnO2 and SO3 respectively without forming O2.
3SO2+O3→3SO3
3SnCI2+2O3→3SnO2+3CI
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