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Photochemical Smog

The molecule ...

Question

The molecule that has minimum/no role in the formation of photochemical smog is:

A

C H_{2} = O

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B

N_{2}

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C

O_{3}

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D

N O

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Solution

The correct option is D $N_{2}$
Chiefly $N O_{2}, O_{3}$ and hydrocarbon is responsible for the build-up smog.
Apart from these other compounds which are responsible for photochemical smog is $H C H O, O_{3},$ and $N O$ .

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