Question

The incorrect statement about ozone is: 

• A. It is a deadly poisonous gas.
• B. It shields the surface of the earth from UV radiation from the sun.
• C. It is used as a refrigerant and in fire extinguishers.
• D. It is formed by combining oxygen molecules with free oxygen atoms.

Hint:

Ozone is essential for life on Earth as it protects the planet from the sun's harmful ultraviolet radiation.

Answer 1

The Correct Option is A

Step 1: Analyzing the statements.
- Ozone (O₃) is a protective layer in the Earth's atmosphere that absorbs harmful UV radiation.
- While ozone is toxic at high concentrations, it is not considered a "deadly poisonous gas" in the context of the atmosphere.
Step 2: Conclusion.
Thus, the incorrect statement is option (A).