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Which of the following gases can cause major depletion of the ozone layer? (A) O₂ (B) NO₂ (C) CO₂ (D) CCl₃F - HSC - SSCE Chemistry - Question 4 - 2011 - Paper 1

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Which-of-the-following-gases-can-cause-major-depletion-of-the-ozone-layer?--(A)-O₂-(B)-NO₂-(C)-CO₂-(D)-CCl₃F-HSC-SSCE Chemistry-Question 4-2011-Paper 1.png

Which of the following gases can cause major depletion of the ozone layer? (A) O₂ (B) NO₂ (C) CO₂ (D) CCl₃F

Worked Solution & Example Answer:Which of the following gases can cause major depletion of the ozone layer? (A) O₂ (B) NO₂ (C) CO₂ (D) CCl₃F - HSC - SSCE Chemistry - Question 4 - 2011 - Paper 1

Step 1

Identify the correct gas

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Answer

Among the given options, the gas that is most well-known for causing significant depletion of the ozone layer is CCl₃F, commonly known as Trichlorofluoromethane or CFC-11. CFCs are notorious for their role in ozone depletion due to their ability to release chlorine atoms when they are broken down by ultraviolet (UV) radiation in the stratosphere.

Step 2

Conclusion

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104 rated

Answer

Therefore, the correct answer is (D) CCl₃F.

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