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Schottky defect in a crystal is observed...

Schottky defect in a crystal is observed when

A

an ion leaves its normal site and occupies an interstitial site

B

unequal number of cations and anions are missing from the lattice

C

density of the crystal is increased

D

equal number of cations and anions are missing from the lattice

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The correct Answer is:
D
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