A compound formed by elements A and B crystallises in cubic structure in which A atoms are at the corners of the cube while B atoms are at the centre of cubic. Formula of the compound is

Options

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

Answer

D

Explanation

`therefore`No.of atoms of element A per unit cell =8 (at corners)`times1/8=1`.
No. of atoms of B in one unit cell=1 (present in the body centre of the cube).
`therefore` the number of atoms of elements A and B per unit is one each.
Hence the formula is AB.