Question

In which of the following pairs, the two spices are iso-structural?
A. `BF_(3)` and `NF_(3)`
B. `BrO_(3)^(-)` and `XeO_(3)`
C. `SF_(4)` and `XeF_(4)`
D. `SO_(3)^(2-)` and `NO_(3)^(-)`

Answer 1

Correct Answer - 2
`|{:("Species","Steric Number","Geometry","Shape"),(BF_(3),3+0,"Trigonal planar","Trigonal planar"),(NF_(3),3+1,"Tetrahedral",underset("pyramidal")("Trigonal")),(BrO_(3)^(-),3+1,"Tetrahedral",underset("pyramidal")("Trigonal")),(XeO_(3),3+1,"Tetrahedral",underset("pyramidal")("Trigonal")),(SF_(4),4+1,underset("bipyramidal")("Trigonal"),"See-Saw"),(XeF_(4),4+2,"Octahedral","Square planar"),(SO_(3)^(2-),3+1,"Tetrahedral",underset("pyramidal")("Trigonal")),(NO_(3)^(-),3+0,"Trigonal planar","Trigonal planar"):}|`
This question can also be credited to chemical bonding.