1.

lsostructural species are those which have the same shape and hybridization. Among the given species identify the isostructural pairs.

Answer»

`[NF_(3) and BF_(3) ]`
`[BF_(4)^(-) and NH_(4)^(+)]`
`[BCl_(3) and BrCl_(3)]`
`[NH_(3) and NO_(3)^(-)]`

Solution :`[BF_(4)^(-) and NH_(4)^(+)]`
(A) `NF_(3)` is PYRAMIDAL while ` BF_(3)` is planar triangular.
(B) `BF_(4)^(-) and NH_(4)^(+)` ION both are tetrahedral so `SP^(3)` hybridization.
(C) `BCl_(3)` istriangular planar while `BrCl_(3)` is T shaped.
(D) `NH_(3)` is pyramidal and `NO_(3)^(-)` is triangular planar.


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