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NEET Sample Paper NEET Sample Test Paper-23

  • question_answer
    Trapped into the crystal in anion vacancy, this defect is known as

    A)  Frenkel defect

    B)  Schottky defect

    C)  Stoichiometric defect

    D)  F-centres

    Correct Answer: D

    Solution :

    F-centres are the sites where anions are missing and in place of them electrons are present. They are responsible for colour. Hence, the correct option is [d].


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