Photochemical smog always contains

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Question

(A) Photochemical smog is formed due to the photochemical oxidation of hydrocarbons and nitrogen oxides in the presence of sunlight.$NO_2$ absorbs $UV

Vedclass · Accepted Answer

$O_3$

Vedclass · Answer

(A) Photochemical smog is formed due to the photochemical oxidation of hydrocarbons and nitrogen oxides in the presence of sunlight.$NO_2$ absorbs $UV$ light and decomposes into nitric oxide $(NO)$ and atomic oxygen $(O)$.Atomic oxygen $(O)$ reacts rapidly with molecular oxygen $(O_2)$ to form ozone $(O_3)$.Therefore,ozone is a characteristic component of photochemical smog.

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