NTA Abhyas JEE Main2020ChemistrySolid StatePractice

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

Options

ANaCl
BZnS
CCaF 2
DNa 2 O

Correct answer

B. ZnS

Step-by-step solution

In ZnS structure, sulphides occupy all the lattice points while Zn 2 + ions are present in alternative tetrahedral voids. N a C l has FCC structure and N a + atom occupied all octahedral hole. C a F 2 has FCC structure and all T-holes will occupied by guest. N a 2 O has FCC sturcture and all T-holes will occupied by guest.

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