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  5. The Solid State / ठोस प्रावस्था

12th Class Chemistry The Solid State / ठोस प्रावस्था Question Bank MCQs - The Solid State

  • question_answer
    The correct statement(s) regarding defects in solids is/are :
    I. Frenkel defect is caused due to shift of positive ion from its normal lattice site to interstitial site.
    II. Frenkel defect is not a dislocation defect.
    III. Schottky defects have no effect on the physical properties of solid.
    IV. Trapping of \[{{e}^{-}}\] in lattice leads to the formation of F-centre.

    A) I and II

    B) II and III

    C) III and IV

    D) I and IV

    Correct Answer: D

    Solution :

    [d]
    Among the given statements, I and IV are correct and II and III are incorrect. Their correct form are as follows
    Frenkel defect is a dislocation defect because ion left its space and aquired some other space.
    Schottky defect effects on the physical properties/solid due to change in density.


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