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7. Photochemical smog is a resultant of the reaction among

  1. NO2, O3 and peroxyacetyl nitrate in the presence of sunlight

  2. CO, O2 and peroxyacetyl nitrate in the presence of sunlight

  3. CO, CO2 and NO2 at low temperature

  4. high concentration of NO2, O3 and CO in the evening

Correct Answer :

NO2, O3 and peroxyacetyl nitrate in the presence of sunlight

Solution

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