The shape of sulphate ion is:
Correct answer: D. Tetrahedral
- A. Hexagonal
- B. Square planar
- C. Trigonal bipyramidal
- D. Tetrahedral
Explanation
d) Tetrahedral:The tetrahedral shape refers to a molecule with a central atom surrounded by four ligands, arranged at the corners of a tetrahedron. The sulfate ion (SO4^2-) has a tetrahedral shape since it has four oxygen atoms bonded to a central sulfur atom.
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Valence shell electron pair repulsion theory predicts molecular shape by arranging bonding pairs and lone pairs around a central atom to minimize repulsion. Questions cover linear, trigonal planar, tetrahedral, trigonal bipyramidal and octahedral electron geometries, bond angles and distortions caused by lone pairs. Electron geometry is not always the same as molecular shape.
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