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J & K CET Medical J & K - CET Medical Solved Paper-2006

  • question_answer
    5 L of a solution contains 25 mg of\[CaC{{O}_{3}}\]. What is its concentration in ppm?(mol. wt. of \[CaC{{O}_{3}}\]is 100):

    A)  25                                         

    B)  1

    C)  5                                            

    D)  2500

    Correct Answer: C

    Solution :

                    \[PPM=\frac{weight\,of\,solute\times {{10}^{6}}}{weight\text{ }of\text{ }solution}\] \[=\frac{25\times {{10}^{-3}}\times {{10}^{6}}}{5000}=5\]


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