The `r_(+)//r_(-)` ratio of ZnS is 0.402. Pick the false statement out of the statements given below : ZnS is 4 : 4 coordination compound, ZnS does not crystallize in rock salt type lattice because `r_(+)//r_(-)` is too small to avoid overlapping of `S^(2-)` ions., `Zn^(2+)` ion is too small to fit precisely into the octahedral voids of `S^(2-)` ions. , `Zn^(2+)` ion is too large to fit into the octahedral voids of `S^(2-)` ions.

Options

A. ZnS is 4 : 4 coordination compound
B. ZnS does not crystallize in rock salt type lattice because `r_(+)//r_(-)` is too small to avoid overlapping of `S^(2-)` ions.
C. `Zn^(2+)` ion is too small to fit precisely into the octahedral voids of `S^(2-)` ions.
D. `Zn^(2+)` ion is too large to fit into the octahedral voids of `S^(2-)` ions.

Answer

D

Explanation

`Zn^(2+)` ion is too small to fit into the octahedral voids of `S^(2-)` ions.