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Schottky defect in a crystal is observed...

Schottky defect in a crystal 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 interstitital site

D

density of the crystal is increased

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The correct Answer is:
B
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Assertion (A) : The density of crystal having Schottky defect is lowered. Reason (R ) : The crystals suffering from Schottky defect have same number of cation and anions missing from their normal lattice sites.

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