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The correct statement regarding defects in crystalline solids is:
A
Frenkel defect is a dislocation defect
B
Frenkel defect is found in halides of alkaline metals
C
Schottky defects have no effect on the density of crystalline solids
D
Frenkel defects decrease the density of crystalline solids
Detailed Solution
In a Frenkel defect the smaller ion leaves its lattice site and occupies an interstitial site, so it is a dislocation defect (density unchanged).
Schottky defects decrease density, and alkali metal halides usually show Schottky defects.
Schottky defects decrease density, and alkali metal halides usually show Schottky defects.