Assertion : Photochemical smog is produced by | vedclass

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(B) Photochemical smog is formed by the action of sunlight on nitrogen oxides $(NO_x)$ and hydrocarbons. Thus,the Assertion is correct. Vehicular poll

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If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.

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(B) Photochemical smog is formed by the action of sunlight on nitrogen oxides $(NO_x)$ and hydrocarbons. Thus,the Assertion is correct. Vehicular pollution is indeed a major source of nitrogen oxides due to the high-temperature combustion of fuel in engines. Thus,the Reason is also correct. However,the Reason does not explain the mechanism of how photochemical smog is produced; it only identifies a source of the pollutant. Therefore,the Reason is not the correct explanation of the Assertion.

Assertion : Photochemical smog is produced by nitrogen oxides.
Reason : Vehicular pollution is a major source of nitrogen oxides.

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Assertion : Photochemical smog is produced by nitrogen oxides.Reason : Vehicular pollution is a major source of nitrogen oxides.