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NEET Sample Paper NEET Sample Test Paper-38

  • question_answer
    The absolute enthalpy of neutralization of the reaction, \[MgO(s)+2HCl(aq.)\xrightarrow{{}}MgC{{l}_{2}}(aq.)+{{H}_{2}}O(l)\]will be

    A)  Greater than \[-57.33\,kJ\,mo{{l}^{-1}}\]

    B)  Less than\[-57.33\,kJ\,mo{{l}^{-1}}\]

    C) \[-57.33\text{ }kJ\,mo{{l}^{-1}}\]

    D) \[57.33\text{ }kJ\,mo{{l}^{-1}}\]

    Correct Answer: A

    Solution :

     Solid bases with exothermic dissolution show higher heat of neutralization. (>13.7 kcal or >-57.33\[kJ\,mo{{l}^{-1}}\])


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