Question

In a solid AB, A atoms are in ccp arrangement and B atoms occupy all the octahedral sites. If two atoms from the opposite faces are removed, then the resultant stoichiometry of the compound is AxBy. The value of x is _____. [nearest integer]

Answer 1

The correct answer is 3
A atoms are in CCP contribution of A is
A = 4
If atoms from opposite faces are removed then
$A = 4− x × \frac{1}{x}$
A = 3
Therefore , x = 3