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  1. A powerful eye irritant present in smog is

    2. A.

     Nitric oxide
    B.

     Sulphur dioxide
    C.

     Peroxyacetyl nitrate
    D.

     Carbon dioxide

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    Answer : Option C

    Explanation :

    Peroxyacetyl nitrate is a secondary pollutant present in photochemical smog. It is thermally unstable and decomposes into peroxyethanoyl radicals and nitrogen dioxide gas. It is a lachrymatory substance.

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