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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
    The simplest formula of a compound containing 50% of an element X (atomic weight 10) and 50% of element Y (atomic weight 20) is:

    A) \[XY\]               

    B) \[{{X}_{2}}Y\]

    C) \[{{X}_{{}}}{{Y}_{2}}\]                     

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

    Correct Answer: B

    Solution :

    \[X:15\]%           \[Y:50\]% \[X:Y=5:2.5=2:1,\text{ }hence\text{ }{{\text{X}}_{2}}Y.\]


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