Q.

PAN an important constituent of photochemical smog, is formed by the action of  NO2 and O3 on 

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a

unburnt hydrocarbons

b

aldehydes

c

pesticides

d

herbicides

answer is A.

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Detailed Solution

PAN an important constituent of photochemical smog, is formed by the action of  NO2 and O3 on Formaldehyde.

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