A solid is made of two element `X` and `Y` .The atoms `Z` are in `C CP` arrangement while the atoms `X` occupy all the terahedral sites .What is the formula of the compound ?

Options

A. `PO_(2)`
B. `P_(2)O`
C. `PO`
D. `P_(2)O_(2)`

Answer

a

Explanation

Four atoms `(P)` contribute in one unit cell from ccp arrangement and `4` atoms `(Q)` from the all stratetral void contributes one unit cell
So, formula of solid ids` P_(4)Q_(8)` so , the simples formulas of the solid is `PQ_(3)`