Environmental Chemistry - Result Question 4
####4. Which one of the following statements regarding photochemical smog is not correct?
[2012]
(a) Carbon monoxide does not play any role in photochemical smog formation.
(b) Photochemical smog is an oxidising agent in character.
(c) Photochemical smog is formed through photochemical reaction involving solar energy.
(d) Photochemical smog does not cause irritation in eyes and throat.
Show Answer
Solution:
(d) The oxidised hydrocarbons and ozone in presence of humidity cause photochemical smog.
Hydrocarbons $+O_2, NO_2, NO, O, O_3$ $arrow$ Peroxides, formaldehyde, peroxyacetylnitrate (PAN), acrolein etc.
It is oxidising in nature and causes irritation to eyes, lungs, nose, asthamatic attack and damage plants.
