Chemistry - Solid State Question with Solution | TestHub

In$\mathrm{C}\mathrm{r}\mathrm{C}{\mathrm{l}}_3$for every,$3\mathrm{C}{\mathrm{l}}^{-}$ions, there is one$\mathrm{C}{\mathrm{r}}^{3+}$ion is present.

Thus, if there are$3\mathrm{C}{\mathrm{l}}^{-}$ions are present in CCP.

Number of octahedral voids = 3, and tetrahedral voids = 6

Total voids = 3+6=9

As$\mathrm{1 }\mathrm{C}{\mathrm{r}}^{3+}$ion is present in the octahedral void, therefore, fraction of holes occupied$=\frac{1}{9}$