An ionic compound has a unit cell consisting of A ions at the corners of cube and B ions on the centers of the face of the cube. The empirical formula for this compound would be:

Options

A. AB
B. `A_(2)B`
C. `AB_(3)`
D. `A_(3)B`

Answer

C

Explanation

`A=(1)/(8) xx 1= ("Corner"), B rArr (1)/(2) xx 6= 3`
`:.` Formua will be `AB_(3)`