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Select the correct statement (s) - (a) The C.N. of cation occupying a tetrahedral hole is 4. (b) The C.N. of cation occupying a octahedral hole is 6. (c) In schottky defects, density of the lattice decreases. (A) a, b(B) b, c (C) a, b, c (D) a, c |
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Answer» Solution : (C) Since tetrahedral holes are surrounded by 4 NEAREST neighbours. So, the C.N. of cation occupying tetrahedral hole is 4. Since OCTAHEDRAL hole is surrounded by six nearest neighbours. So, C.N. of cation occupying octahedral is 6. In SCHOTTKY a pair of anionand cation leaves the lattice. So, density of lattice DECREASES. |
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