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VMMC VMMC Medical Solved Paper-2006

  • question_answer
    The ability of a given substance to assume two or more crystalline structure is called:

    A)  amorphism     

    B)         isomorphism

    C)                         polymorphism   

    D)         isomerism

    Correct Answer: C

    Solution :

    The phenomenon by which a certain crystalline compound exists in two or more different crystalline forms, is called polymorphism e.g., \[\text{CaC}{{\text{O}}_{\text{3}}}\]occurs in two polymorphic forms, i.e., calcite   (rhombohedral)   and   aragonite (orthorhombic).


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