A compund is made of two elements `P` and `Q` are in `ccp` arrangement while atoms `P` occupy all the tetrahedral voids. What is the formula of the compound?

Options

A. XZ
B. `XZ_(2)`
C. `X_(2)Z`
D. `X_(2)Z_(2)`

Explanation

Given A solid has two elements = X and Z
Z are in ccp arrangement and X occupy all tetrahedral sites.
Let the number of atoms of Z in ccp arrangement = 100
`:.` Number of atoms of Z in ccp arrangement = 100
`:.` Number of atoms of X = 200 `" " (because` They occupy all tetrahedral sites)
`:.` Ratio of X : Z = 200 : 100 = 2 : 1 `" " :.` The formula of compound is `X_(2)`Z.