Question

A compound `M_(p)X_(q)` has cubic close packing `(ccp)` arrangement of `X`. Its unit cell structure is shown below. The empirical formula of the compound is

A. MX
B. `MX_(2)`
C. `M_(2)X`
D. `M_(5)X_(14)`

Answer 1

Correct Answer - 2

Number of atoms of M \(= 1 + 4\times\frac{1}{4}=2\)

Number of atoms of X \(=\frac{1}{8}\times8+6\times\frac{1}{2}=4\)

Therefore, the empirical formula is MX₂