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NEET Sample Paper NEET Sample Test Paper-85

  • question_answer
    \[(Ag+Pb)\,alloy\xrightarrow[Zinc\,\,is\,\,added]{Melt\,\,and}\] \[(Ag+Pb+Zn)\,melt\xrightarrow{Cool}\,\,\xrightarrow[Layer\,\,Y]{Layer\,\,X}\] Select correct statement based on above scheme.

    A) Layer X contains Zn and Ag

    B) Layer Y contains Pb and Ag but amount of silver in this layer is smaller than in layer X

    C) X and Y are immiscible layers

    D) All are correct statements

    Correct Answer: D

    Solution :

    [d] Zinc and lead in molten state are immiscible and form separate layers, farther Zn, being ligher, forms upper layer. Silver is soluble in both Zn and Pb, and hence all statements are correct.


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