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One mole crystal of a metal halide of th...

One mole crystal of a metal halide of the type MX with molecular weight 119 g having face centered cubic structure with unit cell length `6.58 Å` was recrystallized. The density of the recrystallized crystal was founed to be `2.44 g cm^(-3)`. The type of defect introduced during the recrystallization is

A

additional `M^(+) and X^(-)` ions at interstitial sites

B

Schottky defect

C

F - centre

D

Frenkel defect

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The correct Answer is:
B
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