RAJASTHAN PMT Rajasthan - PMT Solved Paper-2005

  • question_answer
    The incorrect statement for \[14\,\,g\] of \[CO\] is:

    A)  it occupies \[2.24\,\,litre\] at\[NTP\]

    B)  it corresponds to \[\frac{1}{2}\] mole of\[CO\]

    C)  it corresponds to same mole of \[CO\] and \[{{N}_{3}}\]

    D)  it   corresponds to\[3.01\times {{10}^{23}}\]molecules of \[CO\]

    Correct Answer: A

    Solution :

    \[14\,\,g\] of\[CO=\frac{14}{28}=0.5\]mole \[0.5\,\,mole=3.01\times {{10}^{23}}\]molecules The molecular weight of                 \[CO=(12+16)=28\] The molecular weight of                 \[{{N}_{2}}=14+14=28\] Therefore, the incorrect statement as that it occupies \[2.24\,\,litre\] at\[NTP\].


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