SSC Ecology And Environment Sample Paper NCERT Sample Paper-3

  • question_answer
    Photochemical smog formed in congested metropolitan cities mainly consists of

    A)  Hydrocarbons, ozone and \[S{{O}_{2}}\]

    B)  Hydrocarbons, \[S{{O}_{2}}\] and \[C{{O}_{2}}\]

    C)  Smoke, peroxyacetyl nitrate and \[S{{O}_{2}}\]

    D)  Ozone, peroxyacetyl nitrate and \[N{{O}_{X}}\]

    Correct Answer: D

    Solution :

    [d] Photochemical smog consists of ozone, oxides of nitrogen, peroxyacetyl nitrate and various hydrocarbons (i.e.,\[N{{O}_{X}}\]). These are extremely complex in nature. The oxidant formed in largest concentration is ozone, which is a serious pollutant in the lower atmosphere.

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