Which of the following crystal does not exhibit Frenkel defect ?

1.	Which of the following crystal does not exhibit Frenkel defect ?
Answer» AgBr AgCl KBR ZnS Solution :Frenkel DEFECT is exhibited by compound having low coordination number and compounds having large difference in size of cation and ANION. This defect is not found in alkali metal HALIDES because cation and anions have almost EQUAL sizes and cations cannot be accommodated in interstitial sites.

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