Frenkel defect is noticed in — Solid State Chemistry Question

💡 Solution & Explanation

Frenkel defects are commonly observed in ionic compounds where there is a large difference in the size of ions, typically with smaller cations. AgBr, ZnS, and AgI all show Frenkel defects because $Ag^+$ and $Zn^{2+}$ ions are small enough to occupy interstitial sites. Therefore, correct answer is D.