1.

The geometry of a complex species can be understood from the knowledge of type of hybridisation of orbitals of central atom. The hybridisation of orbitals of central atom in `[B(OH_(4))]^(-)` and the geometry of the complex are respectively.A. `sp^(3)`, tetrahedralB. `sp^(3)`, square planarC. `sp^(3)d^(2)`, octahedralD. `dsp^(2)`, square planar

Answer» Correct Answer - A
Structure of `B(OH)_(4)^(-)` is
`{:(" "OH),(" |"),(HO-B^(-)-OH),(" |"),(" "OH),("4 bond pair + 0 lone pair"):}`
Hybridisation - `sp^(3)`
Geometry - Tetrahedral.


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