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JEE Main 202228 JuneEvening Shift
Exam
JEE Main
Year
2022
Date
28 June
Shift
Evening Shift
Subject
Chemistry
Chapter
Environmental Chemistry

JEE Main 2022 · 28 June · Evening Shift · Chemistry · Environmental Chemistry

Correct statement about photo-chemical smog is

Correct statement about photo-chemical smog is

Options

  1. AIt occurs in humid climate.
  2. BIt is a mixture of smoke, fog and SO2{SO}_{2}.
  3. CIt is reducing smog.
  4. DIt results from reaction of unsaturated hydrocarbons.

Correct answer

D. It results from reaction of unsaturated hydrocarbons.

Step-by-step solution

Photochemical smog occurs in warm, dry and sunny climate.

Photochemical smog results from the action of sunlight on unsaturated hydro carbons and nitrogen oxide.

The common components of photochemical smog are ozone, nitric oxide, acrolein, formaldehyde and peroxyacetyl nitrate (PAN).

It is oxidising smog.

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