NEET 2012 Chemistry question

Not in JEE Main or NEET syllabus

Which one of the following statements regarding photochemical smog is **not** correct?

(1)Photochemical smog does not cause irritation in eyes and throatCorrect
(2)Carbon monoxide does not play any role in photochemical smog formation
(3)Photochemical smog is an oxidizing agent in character
(4)Photochemical smog is formed through photochemical reaction involving solar energy.

Answer: (1)

Solution

Photochemical smog is formed by the action of sunlight on nitrogen oxides and hydrocarbons from vehicle exhaust. It contains ozone, PAN (peroxyacetyl nitrate), aldehydes and , which are strong oxidising agents and cause serious irritation of the eyes,

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Question ID VK-091122