SSC Ecology And Environment Sample Paper NCERT Sample Paper-3

  • question_answer
    Which are the primary constituents of photochemical smog?

    A)  Hydrocarbons and CFCs

    B)  Carbon dioxide and \[N{{O}_{2}}\]

    C)  \[N{{O}_{2}},\]\[{{O}_{3}}\] and hydrocarbons

    D)  \[S{{O}_{2}}\] and CO

    Correct Answer: C

    Solution :

    [c] Photochemical smog is the chemical reaction of sunlight, nitrogen oxides and volatile organic compounds in the atmosphere, which leaves airborne particles and ground-level ozone.1 This noxious mixture of air pollutants may include the following: Aldehydes, Nitrogen oxides, particularly nitric oxide and nitrogen dioxide, Peroxyacyl nitrates, Tropospheric ozone, Volatile organic compounds

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