1.

In which of the following structures coordination number for cations and anions in the packed structure will be same-

Answer»

`Cl^(-)` ion form fcc lattice and `Na^(+)` ions occupy all OCTAHEDRAL voids of the unit cell
`CA^(2+)` ions form fcc lattice and `F^(-)` ions occupy all the eight tetrahedral voids of the unit cell
`O^(2-)` ions form fcc lattice and `Na^(+)` ions occupy all the eight tetrahedral voids of the unit cell
`S^(2-)` ions form fcc lattice and `Zn^(2+)` ions go into ALTERNATE tetrahedral voids of the unit cell

Answer :A


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