In which of the following pairs, the two species are isostructural :

Options

A. `BrO_(3)^(-) and XeO_(3)`
B. `SF_(4) and XeF_(4)`
C. `SO_(3)^(2-) and NO_(3)^(-)`
D. `BF_(3) and NF_(3)`

Answer

A

Explanation

`BrO_(3)^(-) and XeO_(3)` are both pyramidal. All others have different geometries. For example, `SF_(4)` is trigonal bipyramidal and `XeF_(4)` is square planar , `SO_(3)^(2-)` is pyramidal while `NO_(3)^(-)` is trigonal planar , `BF_(3)` is trigonal planar and `NF_(3)` is pyramidal.