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NEET 2018
Exam
NEET
Year
2018
Subject
Botany
Chapter
Environmental Issues

NEET 2018 · Botany · Environmental Issues

In the stratosphere, which of the following elements acts as a...

In the stratosphere, which of the following elements acts as a catalyst in degradation of ozone and release of molecular oxygen?

Options

  1. AFe
  2. BCl
  3. CCarbon
  4. DOxygen

Correct answer

B. Cl

Step-by-step solution

In the stratosphere, Cl acts as a catalyst in degradation of ozone and release of molecular oxygen. UV rays act on CFCs to release Cl atoms which speed up the degradation of the ozone. This cycle continues to hamper the ozone layer leading to its depletion.

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