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InterviewSolution
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Which of the following point defects are shown by AgBr (s) crystals ? (a) Schottky defect (b) Frenkel defect ( c) metal ecxess defect (d) Metal deficiency defectA. Schottky defectB. Frenkel defectC. Metal excess defectD. metal deficiency defect |
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Answer» Correct Answer - A AgBr shows both Schottky as well as Frenkel defect. 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 F frendkel defect. |
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