Sodium chloride crystallises into F.C.C lattice with Na occupying corner of a cube and the centre of each face, whereas `Cl^(-)` is occupies the centre of each edge and centre of the cube. The `r_c //r_a` value for NaCl is 0.53 and coordination number is 6.
If all the face centred ions along one of the axis are removed, the stoichiometry of the resulting solid is

Options

A. `NaCl
B. `Na_2 Cl`
C. `Na_3 Cl_2`
D. `Na_3 Cl_4`

Answer

D