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Select the incorrect statement...

Select the incorrect statement

A

Stoichiometry of crystal remains uneffected due to Schottky defect.

B

Frenkel defect usually shown by ionic compounds havin low coordination number.

C

`F-` centres generation is responsible factor for imparting the colour to the crystal

D

Density of crystal always increases due to substitutional impurity defect.

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The correct Answer is:
4
Density of crystal always increases due to substitutional impurity defect.
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