Statement - I : Frenkel defects are found in silver halides
Statement - II :Frenkel defects are commonly found in ionic solids.

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Both statements I and II are incorrect

Both statements I and II are correct

Statement-I is incorrect and statement-II is correct

Statement-I is correct and statement-II is incorrect

answer is A.

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Detailed Solution

Frenkel defect in ionic crystal arises when some ions (generally cations) leave their normal lattice sites and occupy the interstitial sites.
It is generally observed in ionic solids with low coordination number, and anions are much larger than cations.
It is observed in halides like AgCl, AgI, ZnS.
As Ag⁺ is much smaller in size than Cl^- ion, so as to fit into interstitial positions.
This is due to large difference in the size of Ag⁺ and halide ions.

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