J & K CET Medical J & K - CET Medical Solved Paper-2003

  • question_answer
    The freezing point of equivocal aqueous solution will be highest for:

    A) \[{{C}_{6}}{{H}_{5}}N{{H}_{3}}Cl\]           

    B) \[La{{(N{{O}_{3}})}_{3}}\]

    C)  glucose                               

    D) \[Ca{{(N{{O}_{3}})}_{2}}\]

    Correct Answer: C

    Solution :

                    Glucose is a non-electrolyte, hence,\[i=1,\]while others are electrolyte, hence,\[i>1\]. \[\Delta {{T}_{f}}=i\times {{k}_{f}}\times molality\] The value of\[\Delta {{T}_{f}}\]is lowest for glucose, hence, its freezing point is maximum.


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