A) \[{{P}_{2}}{{Q}_{3}}\]
B) \[{{P}_{4}}Q\]
C) \[{{P}_{4}}{{Q}_{5}}\]
D) \[P{{Q}_{4}}\]
Correct Answer: D
Solution :
Number of atoms at the comers = 6 Contribution of each atom = 1/8 Number of P-atoms \[=6\times \frac{1}{8}=3/4\] Number of atoms at the faces = 6 Contribution of each atom =1/2 \[\therefore\] Number of Q-atoms \[=6\times \frac{1}{8}=3\] Formula \[={{P}_{3/4}}{{Q}_{3}}\] or \[P{{Q}_{4}}\]
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