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JEE Main 202127 AugustEvening Shift
Exam
JEE Main
Year
2021
Date
27 August
Shift
Evening Shift
Subject
Chemistry
Chapter
Environmental Chemistry

JEE Main 2021 · 27 August · Evening Shift · Chemistry · Environmental Chemistry

In stratosphere most of the ozone formation is assisted by :

In stratosphere most of the ozone formation is assisted by :

Options

  1. Aγ\gamma-rays
  2. Bcosmic rays
  3. Cvisible radiations
  4. Dultraviolet radiation

Correct answer

D. ultraviolet radiation

Step-by-step solution

Ozone in the stratosphere is a product of UV radiations acting on dioxygen (O2)\left({O}_{2}\right) molecules.

O2(g)⟶UVO(g)+O(g){O}_{2} ( g ) \overset{UV}{⟶}O ( g ) + O ( g )

O(g)+O2(g)⇌UVO3(g)O ( g ) + {O}_{2} ( g ) \overset{UV}{⇌}{O}_{3} ( g )

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