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Consider the following constituent gases of the atmosphere : 1. Argon 2. Neon 3. Helium 4.Ceirbon dioxide Which one of the following is the correct ascending sequence of the above gases in terms of the volume percentage?

Consider the following constituent gases of the atmosphere : 1. Argon 2. Neon 3. Helium 4.Ceirbon dioxide Which one of the following is the correct ascending sequence of the above gases in terms of the volume percentage? Correct Answer 1-4-2-3

Composition of Dry Air (Substance, % by volume) Nitrogen, N2 78.08 Oxygen, O2 20.95 Argon, Ar 0.93 Carbon dioxide, CO2 0.033 Neon, Ne 0.0018 Helium, He 0.00052 Methane, CH4 0.0002 Krypton, Kr 0.00011 Dinitrogen oxide, N2O 0.00005 Hydrogen, H2 0.00005 Ozone, O3 0.000001

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