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  • Question
  • 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?


  • Options
  • A. 1-3-2-4
  • B. 1-4-2-3
  • C. 4-2-3-1
  • D. 2-4-1-3

  • Correct Answer
  • 1-4-2-3 

    Explanation
    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
  • Tags: Bank Exams

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