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CMC Medical CMC-Medical Ludhiana Solved Paper-2015

  • question_answer
    Name the type of point defect that occur in a crystal of zinc sulphide.

    A)  Schottky defect              

    B)  Frankel defect

    C)  Metal deficiency            

    D)  Metal excess defect

    Correct Answer: B

    Solution :

                            ?     Frenkel defect occur in zinc sulphide. ?                     This defect arise when smaller ions are dislocated from its normal site to an interstitial site. ?                     Create vacancy defect at its original place ?                     Interstitial defect at new location


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