Schottky defect in crystals is observed when

1.	Schottky defect in crystals is observed when
A.	unequal number of cations and anions are missing from the lattice.
B.	equal number of cations and anions are missing from the lattice.
C.	an ion leaves its normal site and occupies an interstitial site.
D.	density of the crystal is increased
Answer» C. an ion leaves its normal site and occupies an interstitial site.

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Schottky defect in crystals is observed when

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