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)` is pyramidal whereas `BF_(3)` is planar triangular
`BF_(4)^(-) and NH_(4)^(-)` ion both are tetrahedral
`BCl_(3) ` is triangular planar whereas `BrCl_(3)` is pyramidal
`NH_(3)` is pyramidal whereas `NO_(3)^(-)` triangular planar.