Question

Arrange the following gases in increasing order of their abundances (% units) in atmosphere on dry basis:
A. Carbon dioxide
B. Helium
C. Hydrogen
D. Neon
E. Argon

• A. A, E, C, D, B
• B. B, C, D, E, A
• C. C, D, B, A, E
• D. C, B, D, A, E

Hint:

Always remember the Top 4: Nitrogen > Oxygen > Argon > $CO_2$. Any other noble gases (Neon, Helium) or Hydrogen are much rarer than these four.

Answer 1

The Correct Option is D