Question

Cations are present in the interstitial sites in _______.

• A. Frenkel defect
• B. schottky defect
• C. vacancy defect
• D. metal deficiency defect

Answer 1

Answer: (A)

Frenkel defect

A Frenkel defect or dislocation defect is a type of defect in crystalline solids wherein an atom is displaced from its lattice position to an interstitial site, creating a vacancy at the original site and an interstitial defect at the new location without any changes in chemical properties.

In this defect, the cation is displaced from its lattice site to an interstitial site.

Hence, Option "A" is the correct answer.