Question
Question: In which of the following crystals alternate tetrahedral voids are occupied ?...
In which of the following crystals alternate tetrahedral voids are occupied ?
A
NaCl
B
ZnS
C
CaF2
D
Na2O
Answer
ZnS
Explanation
Solution
In ZnS structure, sulphide ions, occupy all fcc
lattice points while Zn+2 ions are present in
alternate tetrahedral voids.