Question

Atomicity of primary gases is:

• A. 1
• B. 2
• C. 3
• D. 4

Hint:

Diatomic molecules, such as O\(_2\) and N\(_2\), have an atomicity of 2.

Answer 1

The Correct Option is B

• Atomicity of Primary Gases - Primary gases like oxygen (O₂), nitrogen (N₂), hydrogen (H₂), and others consist of molecules that are made up of two or more atoms of the same element. The atomicity of these primary gases depends on the type of molecule they form.
• For example:
  • Oxygen (O₂): The atomicity of oxygen in O₂ is 2 because it consists of two oxygen atoms.
  • Nitrogen (N₂): The atomicity of nitrogen in N₂ is 2 because it consists of two nitrogen atoms.
  • Hydrogen (H₂): The atomicity of hydrogen in H₂ is 2 because it consists of two hydrogen atoms.
  • Ozone (O₃): The atomicity of oxygen in ozone is 3 because it consists of three oxygen atoms. 

Explanation:

The atomicity of primary gases depends on how many atoms of the element are present in a molecule of that gas. For example, oxygen (O₂) has an atomicity of 2 because it consists of two oxygen atoms, nitrogen (N₂) has an atomicity of 2, hydrogen (H₂) has an atomicity of 2, and ozone (O₃) has an atomicity of 3 because it consists of three oxygen atoms.