Question

Identify the incorrect statement from the following :

• A. Oxides of nitrogen in the atmosphere can cause depletion of the ozone layer
• B. Ozone absorbs the intense ultraviolet radiation of Sun
• C. Depletion of ozone layer is because of its chemical reactions with chlorofluoro alkanes
• D. Ozone absorbs infrared radiation

Answer 1

The Correct Option is D

• (A): Oxides of nitrogen (NOₓ) can indeed cause depletion of the ozone layer by reacting with ozone molecules in the stratosphere, so this statement is correct.
• (B): Ozone absorbs intense ultraviolet (UV) radiation from the Sun, which protects the Earth from harmful UV rays, so this statement is correct.
• (C): The depletion of the ozone layer is primarily caused by its chemical reactions with chlorofluorocarbons (CFCs), which release chlorine atoms that break down ozone molecules, so this statement is correct.
• (D): Ozone does not absorb infrared radiation. It primarily absorbs ultraviolet radiation, especially UV-B and UV-C, but not infrared. So, this statement is incorrect.

Thus, ozone absorbs infrared radiation is the incorrect statement, making option (D) the correct answer.

Answer 2

- Statement (A) is true: Nitrogen oxides in the atmosphere can contribute to ozone depletion.  
- Statement (B) is true: Ozone absorbs ultraviolet (UV) radiation from the Sun.  
- Statement (C) is true: Chlorofluorocarbons (CFCs) contribute to the depletion of the ozone layer.  
- Statement (D) is incorrect: Ozone absorbs UV radiation, not infrared radiation. Ozone's primary role is in protecting the Earth from UV radiation.