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JEE Main & Advanced Chemistry Chemical Bonding and Molecular Structure / रासायनिक आबंधन एवं आणविक संरचना Question Bank Covalent bonding

  • question_answer
    On analysis, a certain compound was found to contain iodine and oxygen in the ratio of \[254\,\,gm\] of iodine and \[80\,\,gm\] of oxygen. The atomic mass of iodine is 127 and that of oxygen is 16. Which of the following is the formula of the compound                                  [CPMT 1981]

    A)                 \[IO\]   

    B)                 \[{{I}_{2}}O\]

    C)                 \[{{I}_{5}}{{O}_{2}}\]     

    D)                 \[{{I}_{2}}{{O}_{5}}\]

    Correct Answer: D

    Solution :

    Compound has 254 gm of \[{{I}_{2}}\] means \[\frac{254}{127}=2\] mole, while 80 gm \[{{O}_{2}}\] means \[\frac{80}{16}=5\] mole so they will form compound \[{{I}_{2}}{{O}_{5}}\].


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