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EAMCET Medical EAMCET Medical Solved Paper-1999

  • question_answer
    The dielectric constants of \[{{\text{H}}_{\text{2}}}\text{O}\]and \[{{\text{D}}_{\text{2}}}\text{O}\]are 82 and 80.5 respectively. Therefore, the solubility of NaCI in \[{{\text{D}}_{\text{2}}}\text{O}\]is ...... than in water:

    A)  equal to             

    B)  slightly less

    C)  slightly higher                  

    D)  very high

    Correct Answer: B

    Solution :

                     Greater the value of dielectric constant, greater will be the polarity of the solvent. Hence, water is more polar than \[{{\text{D}}_{\text{2}}}\text{O}\text{.}\]So, \[\text{NaCl}\] is more soluble in \[{{\text{H}}_{\text{2}}}\text{O}\] in comparison to \[{{\text{D}}_{\text{2}}}\text{O}\text{.}\]


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