In which of the following crystals alternate tetrahedral voids are occupied?

Question

Options:

A . NaCl

B . ZnS

C . CaF2

D . Na2O

Answer: Option B
:
B
InZnSstructure, sulphide ions occupy allFCClattice points while

Z n^{2 +}

ions are present in alternate tetrahedral voids.

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