Isostructrual species are those which have the same shape and hybridisation. Among the given identify the isostructural pairs.

Options

A. `[NF_(3) and BF_(3)]`
B. `[BF_(4)^(-) and NH_(4)^(+)]`
C. `[BCl_(3) and BrCl_(3)]`
D. `[NH_(3) and NO_(3)^(-)]`

Answer

B

Explanation

`NF_(3)` (pyramidal) and `BF_(3)` (trigonal planar) `BF_(4)^(-)` (tetrahedral ) and `NH_(4)^(+)` (tetrahedral)
`BCl_(3)` (trigonal planar) and `BrCl_(3)` (trigonal bipyramidal)
`NH_(3)` (pyramidal) and `NO_(3)^(-)` (trigonal planar)
Thus , `BF_(4)^(-) and NH_(4)^(+) ` are isostrutural species.