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The correct statement regarding defects in crystalline solids is:

  1. A
    Frenkel defect is a dislocation defect
  2. B
    Frenkel defect is found in halides of alkaline metals
  3. C
    Schottky defects have no effect on the density of crystalline solids
  4. D
    Frenkel defects decrease the density of crystalline solids

Solution & Step-by-step Explanation

Frenkel defect involves the migration of an ion (usually cation) from its lattice site to an interstitial site. It is called a dislocation defect.Frenkel defect does not change the density.Schottky defect involves missing pairs of ions, which decreases the density.Alkali metal halides mostly show Schottky defects, not Frenkel.

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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

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