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Sodium chloride crystallises into F.C.C ...

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 6,6.
If all the ions present in one plane that is passing through the centre are removed, the formula of the resulting unit cell is

A

`NaCl`

B

`Na_2 Cl_3`

C

`Na_3 Cl_2`

D

`NaCl_2`

Text Solution

Verified by Experts

The correct Answer is:
A
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