A solid is made of two element P and Q. Atoms P are in ccp arrangement and atoms Q occupy
A solid is made of two element P and Q. Atoms P are in ccp arrangement and atoms Q occupy all the octahedral voids and half of the tetrahedral voids, then the simplest formula of the compound is
(a) PQ2
(b) P2Q
(c) PQ
(d) P2O2
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Correct Option (a) PQ2
Explanation :
Four atoms P contributes to one unit cell from ccp arrangement and 4 atoms Q from the all octahedral voids and 4 atoms Q from the half of the tetrahedral void contributes one unit cell. So, formula of solid is P4O8 so, the simplest formula of the solid is PQ2.
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