NEET Biology Human Reproduction Question Bank Pollution

  • question_answer
    Photochemical smog always contains  [CPMT 1998]

    A)

    B)

    C)

    D) None of these

    Correct Answer: A

    Solution :

    Photochemical smog is formed due to photochemical oxidation (due to action of sunlight) of hydrocarbons and nitrogen oxides. UV light is absorbed by . This highly energised molecule  decomposes into nitric oxide and atomic oxygen. Atomic oxygen reacts quickly with oxygen to form ozone.


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