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Photochemical oxidant PAN is formed....

Photochemical oxidant PAN is formed.

A

By action of oxides of nitrogen on hydrocarbons in presence of sunlight

B

By action of carbon dioxide on hydrocarbons in presence of sunlight

C

By action of hydrogen sulphide on hydrocarbons in presence of sunlight

D

By the action of `SO_2` and hydrocarbons

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The correct Answer is:
A
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