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Introduction to Imperfections in Solids

In zinc blend...

Question

In zinc blende, the percentage of tetrahedral voids occupied by $Z n^{2 +}$ ions is:

A

25

%

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B

50

%

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C

75

%

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D

100

%

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Solution

The correct option is B $50$ %
In zinc blende, $S^{2 -}$ ions have ccp arrangement and $Z n^{2 +}$ ions occupy half, i.e., alternate tetrahedral voids.

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