Question

A compound is formed by elements A and B. The crystalline cubic structure has the A atoms at the corners of the cube and B atoms at the body centre. The simplest formula of the compound is
(a) AB
(b) A₆B
(c) AB₆
(d) A₈B₄

Answer 1

A is present at corners thus contribution will be 1/8×8 = 1

now

B is present at body centre thus contribution will be 1

Therefore the answer will be (a) AB