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Chemistry
Schottky defect in a crystal is observed when
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Q. Schottky defect in a crystal is observed when
AIPMT
AIPMT 1998
The Solid State
A
an ion leaves its normal site and occupies an interstitial site
10%
B
unequal number of cations and anions are missing from the lattice
11%
C
density of the crystal is increased
5%
D
equal number of cations and anions are missing from the lattice
75%
Solution:
In Schottky defect, equal number of cations and anions are missing from the lattice. Due to this defect, density of crystal decreases.