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UPSC General Studies Sample Paper General Studies Sample Paper-7

  • question_answer
    Arrange the following gases in decreasing order of concentration in atmosphere.
    1. Argon                       
    2. Neon               
    3. Carbon dioxide          
    4. Methane
    Codes

    A)  4, 3, 2, 1                     

    B)  1, 3, 2, 4            

    C)  3, 2, 1, 4                     

    D)  3, 2, 4, 1

    Correct Answer: C

    Solution :

    [c] Atmospheric composition
    Constituent Percentage by Volume
    \[{{N}_{2}}\] 78.08             
    \[{{O}_{2}}\] 20.94
    Ar 0.934
    \[C{{O}_{2}}\] 0.036
    Ne 0.0018
    He 0.0005
    \[C{{H}_{4}}\] 0.00015
    Kr 0.00011
    \[{{H}_{2}}\] 0.00005


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