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  5. The Solid State / ठोस प्रावस्था

12th Class Chemistry The Solid State / ठोस प्रावस्था Question Bank Case Based (MCQs) - Solid State

  • question_answer
    Zinc oxide (ZnO) is white when cold and yelllow when hot. It is due to the development of :

    A) Frenkel defect    

    B) Schottky defect

    C) Metal excess defect

    D) Metal deficiency defect.

    Correct Answer: C

    Solution :

    Ge doped with electron deficient impurity, Al (Group 13) is a p-type semiconductor.


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