What is the molecular mass of an ozone molecule?

Correct option is B

Correct Answer: (b) 48
Explanation: The molecular mass of an ozone (O3) molecule is calculated by summing the atomic masses of its three oxygen atoms. The atomic mass of a single oxygen atom is 16 atomic mass units (amu).
Molecular Mass of O3 = 16 × 3 = 48 amu
This value represents the total weight of the ozone molecule, which consists of three oxygen atoms bonded together.
Key Facts (Exam-Oriented):
· Ozone (O3) is an allotrope of oxygen composed of three oxygen atoms.
· Its molecular mass is 48 amu, derived from the atomic mass of oxygen (16 amu × 3).
· Ozone is found in the stratosphere, where it forms the ozone layer, protecting Earth from harmful ultraviolet (UV) radiation.
· Ozone is a pale blue gas with a sharp smell and is also used as a disinfectant.
· Unlike oxygen (O2), ozone is less stable and readily decomposes into O2 molecules.