Question

Find the odd man out
(A) Nitrogen
(B) Carbon dioxide
(C) Helium
(D) Argon

Answer 1

(B) Carbon Dioxide

Reason:

• Here, Nitrogen (N), Helium (He) and Argon (Ar) are atoms of elements. But in case of Carbon Dioxide, it is composed of two types of elements, viz., Carbon and Oxygen.
• Thus, it is a compound and others are elements.

(On the basis of:-

1. Number of atoms,
2. Compound/Element)