Read the Assertion and Reason below and choose the correct option. — Solid State Chemistry Question

💡 Solution & Explanation

Silver halides exhibit Frenkel defects, so the Assertion is true. Frenkel defects are indeed favored when the cation is significantly smaller than the anion, so the Reason is true. However, the exact mechanism for silver halides also involves the high polarizability and partial covalent character of the Ag-X bond, meaning the size difference alone is not the sole correct explanation. Therefore, correct answer is B.