For a reaction in equilibrium; the species involved in the equilibrium constant expression are?

The air pollutant unknown in nature is?

A. NO B. CO C. HCHO D. DDT Correct Answer: Option C – HCHO Explanation Formaldehyde (HCHO) is the most important carcinogen in outdoor air among the 187 hazardous air pollutants (HAPs) identified by the U.S. Environmental Protection Agency...

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