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NEET
Exam
NEET
Subject
Chemistry
Chapter
Environmental Chemistry

NEET · Chemistry · Environmental Chemistry

What is the main cause of ozone depletion over Antarctica during...

What is the main cause of ozone depletion over Antarctica during the winter season?

Options

  1. AChlorine monoxide
  2. BNitrogen dioxide
  3. CMethane
  4. DPolar stratospheric clouds

Correct answer

D. Polar stratospheric clouds

Step-by-step solution

The main cause of ozone depletion over Antarctica during the winter season is the formation of polar stratospheric clouds, which provide a surface for the conversion of chlorine nitrate into hypochlorous acid and molecular chlorine, ultimately leading to ozone depletion when sunlight returns in the spring.
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