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Question
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 [Be(OH)4]– and the geometry of the complex are respectively.
Options
sp3, tetrahedral
sp3, square planar
sp3d2, octahedral
dsp2, square planar
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Solution
sp3, tetrahedral
Explanation:
Boron has die electronic configuration: 1s2 2s2 2px1 2p0 y 2p0z
In the excited state, 2s-orbital electrons are impaired and one electron is shifted to a p-orbital. Now, hybridisation occurs between one s-and three p-orbitals to give sp3 hybridisation and tetrahedral geometry.
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