The secondary precursors of photochemical smog are:

S O_{2}

and

N O_{2}

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N O_{2}

and hydrocarbons

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O_{3}

and hydrocarbons

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C O_{2}

and

O_{2}

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Solution

The correct option is D $O_{3}$ and hydrocarbons
Photo chemical smog occurs in warm and dry climate by the action of sunlight on the oxides of nitrogen. $N O_{2}$ and $O_{3}$ are strong oxidizing agents. They react with unburnt hydrocarbons to produce formaldehyde, acrolein, and PAN i.e peroxyacetyl nitrate. These are the secondary compounds of photochemical smog.

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Similar questions

Which of the following pairs is secondary precursors of photochemical smog –

x

y

x \times y

O_{3}, N_{2} O, N O_{2}, S O_{2}, C O_{2}, S n C l_{2}, C l_{2} O, H C N, + N O_{2}

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