Specify The Co-ordination Geometry Around And Hydridisation Of N And B Atoms In A 1 : 1 Complex Of BF3 and NH3.

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Question

easy

Correct option is

N: tetrahedral, sp³; B: tetrahedral, sp³

Originally in NH₃, N is pyramidal (sp³) and in BF₃, B is planar (sp²). But after the bond formation, i.e., in the complex

H₃N → BF₃, both N and B have four shared pairs of electrons and hence both have tetrahedral (sp³) geometry.