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11/09/2020 8:24 pm
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Which of the following point defects are shown by AgBr (s) crystals?
(A) Schottky defect
(B) Frenkel defect
(C) Metal excess defect
(D) Metal deficiency defect
(a) A and B
(b) C and D
(c) A and C
(d) B and D
1 Answer
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11/09/2020 8:27 pm
(a) A and B
Explanation:
AgBr shows both Schottky and Frenkel defects. In AgBr, both Ag+ and Br ions are absent from the lattice causing Schottky defect. However, Ag+ ions are mobile so they have a tendency to move aside the lattice and trapped in interstitial site, hence cause Frenkel defect.