Question:medium

The incorrect statement about crystals with Schottky defect is

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Remember the key differences between Schottky and Frenkel defects: Schottky: Equal number of cations and anions are MISSING. Density DECREASES. Occurs when ion sizes are similar (e.g., NaCl). Frenkel: A cation is DISLOCATED from its lattice site to an interstitial site. Density remains UNCHANGED. Occurs when there is a large difference in ion sizes (e.g., AgCl).

Updated On: Mar 30, 2026

It is due to missing of equal number of cations and anions from lattice points
On the whole crystal is electrically neutral
It is shown by ionic compounds in which cation and anion are of almost same size
Density of the crystal increases

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The Correct Option is D

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