Question

Silica dissolves in aqueous hydrofluoric acid and forms stable silicon complex. The hybridisation of silicon in the complex is
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Answer 1

The hybridization of silicon in the complex formed by dissolving silica in aqueous hydrofluoric acid is sp³d².

- The compound formed by the dissolution of Silica (SiO₂) in aqueous hydrofluoric acid (HF) is a stable silicon complex named Hexafluorosilicic acid (H₂SiF₆).

- The chemical reaction is given as:

SiO₂ + 6 HF → H₂[SiF₆] + 2 H₂O

- It is an octahedral complex with sp³d² hybridization of silicon.