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CET Karnataka Engineering CET - Karnataka Engineering Solved Paper-2010

  • question_answer
    1 g of silver gets distributed between \[10\,\,c{{m}^{3}}\]of molten zinc and \[100\,\,c{{m}^{3}}\] 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 \[=\frac{1-x}{100}\] \[\therefore \] 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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