question_answer

\[N{{O}_{2}}\] is involved in the production of one of the most unpleasant of all chemicals present in photochemical smog. It is known as

A) methanal               

B) acrylonitrile

C) peroxyacetyl nitrate         

D) None of these

Correct Answer: C

Solution :

It is peroxyacetyl nitrate (PAN). Its presence in the atmosphere irritates eyes and lungs and generally makes breathing difficult.