Which of the following show both Frenkel and Schottky defect?

Step-by-step solution

Frenkel defect arises due to the displacement of an ion from its lattice site to an interstitial site, typically occurring in ionic crystals where there is a large difference in size between the cation and the anion. Schottky defect arises due to the missing of equal numbers of cations and anions from the lattice sites to maintain electrical neutrality, typically occurring in ionic crystals with high coordination numbers and small differences in ionic sizes. Silver bromide ( AgBr ) is a unique case in solid state c