JEE Main201910 Jan 2019Evening ShiftChemistryEnvironmental ChemistryActual
The reaction that is not involved in the ozone layer depletion mechanism in the stratosphere is
Options
- ACH 4 + 2 O 2 → CO 2 + 2 H 2 O
- BCl O   ∙ g + O   g → C ∙ l   g   + O 2   g
- CCF 2 Cl 2   g →          uv       C ∙ l 
- DHOCl   g →          h ( nu )       O ∙ H &#
Correct answer
A. CH 4 + 2 O 2 → CO 2 + 2 H 2 O
Step-by-step solution
Methane oxidation is responsible for the majority of ozone formation in troposphere. Hence, the process is not involved in the ozone layer depletion mechanism in the stratosphere.