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Which of the following statements is true regarding Frenkel defect?


Option: 1

It occurs when an atom is missing from its lattice site and occupies an interstitial site.


Option: 2

It involves the movement of a cation and an anion to form a vacancy and an interstitial site.

Option: 3

 It is a type of line defect that occurs along a grain boundary.


Option: 4

It occurs when there is a mismatch in the crystal lattice size of adjacent grains.


Answers (1)


Frenkel defect is a type of point defect in a crystal lattice where an ion or atom is missing from its original lattice site and instead occupies an interstitial site in the crystal. This type of defect is commonly observed in ionic crystals, where the cation or anion occupies the interstitial site. In contrast, a Schottky defect involves the creation of a paired vacancy, and grain boundary defects are line defects that occur along the boundary between two grains.

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Shailly goel

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