A) \[S{{O}_{2}}\]
B) \[C{{O}_{2}}\]
C) PAN
D) \[{{N}_{2}}O\]
Correct Answer: C
Solution :
Pollutants which are formed by reaction among the primary pollutants (persist in the environment in the form they are passed into it) are known as secondary pollutants, e.g., peroxyacyl nitrates (PAN) are formed through reaction between nitrogen oxides and hydrocarbons in the presence of sunlight. Hence, the correct option is [c].
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