A) \[{{P}_{3}}Q\]
B) \[{{P}_{2}}{{Q}_{3}}\]
C) \[{{P}_{3}}{{Q}_{2}}\]
D) \[P{{Q}_{3}}\]
Correct Answer: B
Solution :
Let octahedral voids \[=x=\] Number of atoms of Q. So, tetrahedral voids \[=2x.\] Number of atoms of \[P=\frac{1}{3}\times 2x=\frac{2}{3}x\] \[P:Q=\frac{2}{3}x:x=2:3\] Formula \[={{P}_{2}}{{Q}_{3}}\] Hence, the correct option is [b].
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