Question

A compound X formed by elements X and Y crystallises in a cubic structure, where X atoms are present at the corners of a cube and Y atoms are at the centres of the body. The formula of compound is:
A. XY
B. `XY_(2)`
C. `X_(2)Y_(3)`
D. `XY_(3)`

Answer 1

Correct Answer - A
Contribution of X atoms at the corners of cube
`=8xx1//8=1`
Contribution of Y atoms at the centre of body of cube `=1`
`:.` Formula of cube `=XY`