Which defect causes decrease in the density of crystal [KCET 2000, 05]

1.	Which defect causes decrease in the density of crystal [KCET 2000, 05]
A.	Frenkel
B.	Schottky
C.	Interstitial
D.	\[F-\]centre
Answer» C. Interstitial

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Which defect causes decrease in the density of crystal [KCET 2000, 05]

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