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Question: Answered & Verified by Expert
In $A g B r$ crystal, the ion size lies in the order $A g^{+}\lt \lt \mathrm{Br}^{-}$. The $A g B r$ crystal should have the following characteristics
ChemistrySolid StateJEE Main
Options:
  • A Defectless (perfect) crystal
  • B Schottky defect only
  • C Frenkel defect only
  • D Both Schottky and Frenkel defects
Solution:
1315 Upvotes Verified Answer
The correct answer is: Frenkel defect only
$\mathrm{AgBr}$ exhibits Frenkel defect due to large difference in the size of $\mathrm{Ag}^{+}$and $\mathrm{Br}^{-}$ions.

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