Question

Assertion (A): An ozone molecule (O$_3$) is formed from three atoms of oxygen.
Reason (R): Ozone protects life on Earth from harmful ultraviolet (UV) radiation.

• A. Both A and R are true and R is the correct explanation of A.
• B. Both A and R are true but R is not the correct explanation of A.
• C. A is true but R is false.
• D. A is false but R is true.

Hint:

Ozone absorbs harmful UV radiation, but its molecular structure (O$_3$) is not due to this protective function.

Answer 1

The Correct Option is B

Ozone (O$_3$) is composed of three oxygen atoms. It protects Earth from UV rays, but that is not the reason why it is made up of three atoms. So both statements are correct but not causally linked.