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JEE Main & Advanced Chemistry The Solid State / ठोस प्रावस्था Question Bank Critical Thinking The Solid State

  • question_answer
    What type of crystal defect is indicated in the diagram below [AIEEE 2004] \[N{{a}^{+}}\,\,C{{l}^{-}}\,\,N{{a}^{+}}\,\,C{{l}^{-}}\,\,\,N{{a}^{+}}\,\,\,C{{l}^{-}}\] \[C{{l}^{-}}\] ¨ \[C{{l}^{-}}\]  \[N{{a}^{+}}\] ¨ \[N{{a}^{+}}\] \[N{{a}^{+}}\]  \[C{{l}^{-}}\]¨  \[C{{l}^{-}}\]  \[N{{a}^{+}}\]  \[C{{l}^{-}}\] \[C{{l}^{-}}\]  \[N{{a}^{+}}\]  \[C{{l}^{-}}\]  \[N{{a}^{+}}\] ¨ \[N{{a}^{+}}\]

    A) Interstitial defect

    B) Schottky defect

    C) Frenkel defect

    D) Frenkel and Schottky defects

    Correct Answer: B

    Solution :

    In this diagram, equal number of cations \[(N{{a}^{+}})\] and anions \[(C{{l}^{-}})\] are missing, so it, shows schottky defect.


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