Question

Q. Which of the following compounds are responsible for ozone depletion?

Select the correct answer using the code given below:

• A. 1 and 4 only
• B. 2 and 4 only
• C. 1, 2 and 4 only
• D. All of the above

Answer 1

The correct option is B 2 and 4 only

Explanation

Statement 1 is incorrect:

• Hydro-fluorocarbons are not ozone-depleting substances.

Statement 2 and 4 are correct:

• Ozone-depleting compounds are chemicals that can cause degradation of the ozone layer. Such compounds contain halons (Chlorine, Bromine, etc.) in their molecular structure, which react with the ozone in the stratosphere and cause its depletion

Statement 3 is incorrect:

• Carbon dioxide is not ozone-depleting.