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NEET Sample Paper NEET Sample Test Paper-77

  • question_answer
    What will be the formation of \[C{{O}_{2}}\] is? \[\operatorname{C}+{{O}_{2}}\,\xrightarrow{{}}\,\,C{{O}_{2}}~~~~~\Delta H\,\,=\,\,X\] \[\operatorname{CO}+\frac{1}{2}{{O}_{2}}\,\xrightarrow{{}}\,\,C{{O}_{2}}~~~~~\Delta H\,\,=\,\,Y\]

    A)  \[\operatorname{X}\,-Y\]                       

    B)  \[Y-2X\]

    C)  \[X+Y\]                       

    D)  \[2\,X-Y\]

    Correct Answer: A

    Solution :

    \[\operatorname{C} + {{O}_{2}}\,\xrightarrow{{}} C{{O}_{2}},~\,\,\,\,\,\,\,\,\,\Delta H =X\]                    ?. (i) \[\operatorname{CO} + \frac{1}{2}{{O}_{2}}\,\xrightarrow{{}} C{{O}_{2}},~\,\,\,\,\,\,\,\,\,\Delta H =Y\] ? (ii) By Eqs. (i) and (ii), we get \[\operatorname{C}+\frac{1}{2}{{O}_{2}}\,\xrightarrow{{}} CO\,\,\,\,\,\, \Delta H=X\,\,-Y\]


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