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Elias Gole
Asked: 2022-11-03T19:18:59+05:30 In:

The `Ca^(2+)` and `F^(-)` ions located in `CaF_(2)` crystal respectively at `f.c.c.` lattice points and in`:`
A. octahedral voids
B. tetrahedral voids
C. half of octahedral voids
D. half of tetrahedral voids

The `Ca^(2+)` and `F^(-)` ions located in `CaF_(2)` crystal respectively at `f.c.c.` lattice points and in`:`
A. octahedral voids
B. tetrahedral voids
C. half of octahedral voids
D. half of tetrahedral voids
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1 Answer

  1. Correct Answer – b
    In `CaF_(2)`, the `Ca^(2+)` ions are present at all the corners and the centre of each face of the cube. The `F^(-)` ions occupy the tetrahedral sites.

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