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NTA Abhyas 2020
Exam
NTA Abhyas
Year
2020
Subject
Chemistry
Chapter
Solid State

NTA Abhyas 2020 · Chemistry · Solid State

In which of the following crystals alternate tetrahedral voids are...

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

Options

  1. ANaCl
  2. BZnS
  3. CCaF_{2}
  4. 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.
NaClNaCl has FCC structure and Na+Na^{+} atom occupied all octahedral hole.
CaF2Ca{F}_{2} has FCC structure and all T-holes will occupied by guest.
Na2ON{a}_{2}O has FCC sturcture and all T-holes will occupied by guest.
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