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Question: Answered & Verified by Expert
In the structure of SF4, the lone pair of electrons on S is in.
ChemistryChemical Bonding and Molecular StructureJEE MainJEE Main 2022 (28 Jun Shift 2)
Options:
  • A Equatorial position and there are two lone pair - bond pair repulsions at 90°.
  • B equatorial position and there are three lone pair - bond pair repulsions at 90°.
  • C axial position and there are three lone pair - bond pair repulsion at 90°.
  • D axial position and there are two lone pair - bond pair repulsion at 90°.
Solution:
1127 Upvotes Verified Answer
The correct answer is: Equatorial position and there are two lone pair - bond pair repulsions at 90°.

In SF4, The lone pair is in an equatorial position, and there are two lp—bp repulsions. Hence, the following arrangement shown below is more stable.

The shape shown in the following figure is described as a distorted tetrahedron, a folded square or a see-saw.

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