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JEE Main & Advanced Sample Paper JEE Main - Mock Test - 45

  • question_answer
    Schottky defects occurs mainly in electrovalent compounds where:

    A) Positive ions and negative ions are of different size.

    B) Positive ions and negative ions are of same size.

    C) Positive ions are small and negative ions are big.

    D) Positive ions are big and negative ions are small.

    Correct Answer: B

    Solution :

    Schottky defect is caused if some of the lattice points are unoccupied. The points which are unoccupied are called vacancies or holes. The number of missing positive and negative ions are of similar size.


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