UGCPQ Q.46

46In the formation of Surface Ozone, which of the following do play an important role?
(A) Oxides of nitrogen
(B) Oxides of sulphur
(C) Sunlight
(D) Carbon monoxide
Choose the correct answer from the code given
below:

Option : C
Explanation : The majority of tropospheric ozone formation occurs when nitrogen oxides (NOx), carbon monoxide (CO) and volatile organic compounds (VOCs), such as xylene, react in the atmosphere in the presence of sunlight.

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