NEET levelSingle correct optionDifficulty 1 of 3ss009
The defect in which an ion leaves its lattice site and occupies an interstitial position is called
ASchottky defect
BF-centre
CFrenkel defect
DMetal excess defect due to anion vacancy
Answer: C
A Frenkel defect is a dislocation defect: the (usually smaller cation) ion moves to an interstitial site, leaving a vacancy. It is seen in AgBr and ZnS and does not change the density.