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  3. RAJASTHAN ­ PET

RAJASTHAN ­ PET Rajasthan PET Solved Paper-2002

  • question_answer
    When\[CaO\]dissolves in water, then heat releases. On increasing temperature its solubility

    A)  increases

    B)  decreases

    C)  unchanged

    D)  first increases, then decreases

    Correct Answer: B

    Solution :

     \[CaO+{{H}_{2}}OCa{{(OH)}_{2}}+Heat\] This is exothermic reaction hence on increasing the temperature the solubility of \[CaO\]decreases.


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