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) sp³, tetrahedral

(B) sp³, square planar

(C) sp³ d², octahedral

(D) dsp², square planar

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alok kumar singh | Contributor-Level 10

5 months ago

This is a Multiple Choice Questions as classified in NCERT Exemplar

Central atom in [B (OH)₄ ]⁻no lone pair. Electronic conf In ground state: 1s²2s²2px¹2py⁰2pz⁰

In excited state, One Electron from 2s shifts to 2py orbital and the configuration becomes:

1s² 2s² 2p¹ x² p¹ y² pz⁰

Now, one s and three p orbitals combined to give sp³ hybridisation and tetrahedral shape.

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