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Question: Answered & Verified by Expert
The fluoride for which the dipole moment is not equal to zero, is :
ChemistryChemical Bonding and Molecular StructureNEET
Options:
  • A XeF 4
  • B CF 4
  • C SF 4
  • D PF 4
Solution:
1819 Upvotes Verified Answer
The correct answer is: SF 4
As per VSEPR Theory

XeF 4 H 1 2 8 + 4 = sp 3 d 2 6

Geometry square planar with 2 L.P.
μ = 0   (symmetry)


CF 4 H 1 2 4 + 4 = sp 3 4

Tetrahedral geometry
μ = 0   (symmetry)


PF 5 H = 1 2 5 + 5 = sp 3 d 5

Trigonal bipyramidal
μ = 0 (Symmetry)


SF 4 H = 1 2 6 + 4 = sp 3 d 5
With one L.P see saw geometry
μ 0 has a value



μ > 0 due to two S - F bonds in equatorial plane.

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