Photo AI
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
Question 4
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
Answer
To determine which gas can cause major depletion of the ozone layer, we need to analyze each option.
- O₂ (Oxygen): This gas is a fundamental component of the atmosphere but does not deplete the ozone layer.
- NO₂ (Nitrogen Dioxide): While it can contribute to pollution and health problems, it is not a major depleter of ozone.
- CO₂ (Carbon Dioxide): This is primarily known for contributing to global warming and has minimal impact on ozone depletion.
- CCl₃F (Trichlorofluoromethane): This compound, commonly known as CFC-11, is well-known for its role in ozone depletion.
Therefore, the gas that causes major depletion of the ozone layer is CCl₃F (D).