Ionic lattice has two major points defects, (1) Schottky (2) Frenkel defects. Schottky defects o...

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Ionic lattice has two major points defects, (1) Schottky (2) Frenkel defects. Schottky defects occurs due to the cation-anion pair's missing from the lattice sites. Frenkel defects occurs when an ion leaves its lattice site and fits into an interstitial space. The neutrality of the crystal is being maintained and we considered all losses from interstitial positions.
Structure shown here represents:
(a) Schottky defect
(b) Frenkel defect
(c) Metal excess defect
(d) None of these
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