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What do you understand by imperfections in ionic crystals? Name the types of imperfections which generally occur in ionic crystals.

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The correct Answer is:
Imperfections in solids: Any deviation from the perfectly ordered arrangement consititutes a defect or imperfection. These defect are sometimes called theromodynamic defects because the number of these defects depends on the temperature.
(i) Stoichiometric point defects : Schottky Defects, Interstitial Defects, Frenkel Defects
(ii) Non-Stoichiometric defects: Metal excess defects, Metal deficiency defects
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RESONANCE ENGLISH-SOLID STATE-Exercise -1
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