1.

Identify the incorrect statement from the following

Answer»

Ozone absorbs the intense ULTRAVIOLET radiation of the sun.
Depletion of ozone layer is because of its chemical REACTIONS with chlorotluoro alkanes
Ozone absorbs infrared radiation.
Oxides of nitrogen in the atmosphere can cause the depletion of ozone layer.

Solution :The ozone layer, existing between 20 to 35 km above the earth's surface, shield the earth from the harmful U. V. radiations from the sun. Depletion of ozone is caused by oxides of nitrogen
`N_(2)O+hv UPSILON to NO+N`
`NO+O_(3) to NO_(2)+O_(2)`
`O_(3)+h upsilon to O_(2)+O`
`NO_(2)+O to NO+O_(2)`
`2O_(3)+h upsilon to 3O_(2) ` (Net raction)
The presence of oxides of nitrogen increase thedecomposition of `O_(3)`.


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