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Pick up the correct statement :...

Pick up the correct statement :

A

CO which is major pollutant resulting from the combustion of fuels in automobiles plays a major role in photochemical smog

B

Classical smog has an oxigizing character while the photochemical smog is reducing in character,

C

Photochemical smog occurs in day time whereas the classical smog occurs in early morning hours

D

During formation of smog the level of ozone in the atmosphere goes down

Text Solution

Verified by Experts

The correct Answer is:
D
During formation of smog the level of ozone in the atmosphere goes down
`NO+ O_3 overset(hv) to NO_2 +O_2`
In the atmosphere the organic compounds rapidly react with ` O_3, NO_2 and ` free radicals like ` HO, HOO ` etc.
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