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CET Karnataka Medical CET - Karnataka Medical Solved Paper-2010

  • question_answer
    \[1g\]of silver gets distributed between \[10c{{m}^{3}}\] of molten zinc and \[100c{{m}^{3}}\]of molten lead at\[{{800}^{o}}C\]. The percentage of silver in the zinc layer is approximately

    A)  \[89\]             

    B)  \[91\]

    C)  \[97\]             

    D)  \[94\]

    Correct Answer: C

    Solution :

    Concentration of \[Ag\] in zinc \[=\frac{x}{10}\] \[\therefore \] Concentration of \[Ag\] in \[Pb=\frac{1-x}{100}\] \[\frac{\frac{x}{10}}{\frac{1-x}{100}}=300\] On solving, we get \[x=97%\]


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