In which of the following structures,the anion has the maximum coordination number?

The number of hexagonal faces that are present in a truncated octahedron is

The radius of divalent cation $A^{+2}$ is $94 \, pm$ and divalent anion $B^{-2}$ is $146 \, pm$. The structure of compound $AB$ is

$A$ cubic lattice has $A$ atoms at the body centre,$B$ atoms at the corners,and $C$ atoms at half of the face centres. The formula of the lattice is:

$A$ cubic lattice has atoms of $A$ at the body centre,atoms of $B$ at the corners of the cube and atoms $C$ at all the face centres. What is its formula?

The intermetallic compound $LiAg$ crystallizes in a cubic lattice in which both lithium and silver have a coordination number of $8$. The crystal class is