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NEET Sample Paper NEET Sample Test Paper-56

  • question_answer
    The \[C{{a}^{2+}}\] and \[{{F}^{-}}\] ion are located in \[Ca{{F}_{2}}\]crystal, respectively at fee lattice points and in:

    A) Tetrahedral voids

    B) Half of tetrahedral voids

    C) Octahedral voids

    D) Half of octahedral voids

    Correct Answer: A

    Solution :

    [a] Tetrahedral voids In \[Cc{{F}_{2}}\] crystal, \[C{{a}^{2+}}\]ion are present at all corners and at the centre of each face of the cube and \[{{F}^{-}}\] ions occupy all the tetrahedral voids.


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