JEE Main & Advanced Sample Paper JEE Main - Mock Test - 33

  • question_answer
    Calculate depression of freezing point for 0.56 molal aq. solution of\[KCl\]. (Given:\[{{K}_{f}}_{({{H}_{2}}O)}=1.8K\,kg\,mo{{l}^{-1}}\]).

    A) 2    

    B)        3     

    C) 4                     

    D)        5

    Correct Answer: A

    Solution :

    [a] \[\Delta {{T}_{f}}=i{{k}_{f}}m\] \[=2\times 1.8\times 0.56\] =2.0    


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