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JEE Main & Advanced Chemistry Some Basic Concepts of Chemistry / रसायन की कुछ मूलभूत अवधारणाएँ Question Bank Chemical stoichiometry

  • question_answer
    The simplest formula of a compound containing 50% of element X (atomic mass 10) and 50% of element Y (atomic mass 20) is                                      [Roorkee 1994]

    A)                 \[XY\]     

    B)                 \[{{X}_{2}}Y\]

    C)                 \[X{{Y}_{3}}\]     

    D)                 \[{{X}_{2}}{{Y}_{3}}\]

    Correct Answer: B

    Solution :

              
    Element % a At.wt. b a/b Ratio
    X 50 10 5 2
    Y 50 20 2.5 1
                                    Simplest formula \[={{X}_{2}}Y\]


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