MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Inorganic ChemistryEnvironmental ChemistryO3, NO2 acrolein, formaldehyde and PAN

Which of the following is/are the primary precursor(s) of the photochemical smog?

A.PAN

B.NO2

C.Hydrocarbon

D.Both (a) and (c)✓ Correct

Explanation

The primary precursors of photochemical smog are NO2 and Hydrocarbons.

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