AP EAMCET2013ChemistrySolid State
The number of octahedral and tetrahedral holes respectively present in a hexagonal close packed ( h c p) crystal of ' X ' atoms are
Options
- AX, 2 X
- BX, X
- C2 X, X
- D2 X, 2 X
Correct answer
C. 2 X, X
Step-by-step solution
In a close packed structure (hcp or c c p) (i) Number of octahedral voids = Number of particles present in the close packing (ii) Number of tetrahedral voids =2 Number of octahedral voids.