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JEE Main & Advanced Chemistry Some Basic Concepts of Chemistry / रसायन की कुछ मूलभूत अवधारणाएँ Question Bank Mock Test - Some Basic Concepts of Chemistry

  • question_answer
    A gaseous mixture contains \[C{{O}_{2}}(g)\] and \[{{N}_{2}}O(g)\] in 2 : 5 ratio by mass. The ratio of the number of molecules of \[C{{O}_{2}}(g)\]and \[{{N}_{2}}O(g)\]is

    A) 5:2                   

    B) 2 : 5

    C) 1 : 2                 

    D) 5 : 4

    Correct Answer: B

    Solution :

      \[C{{O}_{2}}(g)\] \[{{N}_{2}}O(g)\]
    Weight 2w 5w
    No. of mole \[\frac{2w}{44}\] \[\frac{5w}{44}\]
    No. of molecules \[\frac{2w}{44}\times {{N}_{A}}\] \[\frac{5w}{44}\times {{N}_{A}}\]
    Ratio \[2:5\]  
     


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