Question:
Identify the geometry of $\text{TeF}_4$ molecule from the following.
Identify the geometry of $\text{TeF}_4$ molecule from the following.
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Molecules with 5 electron pairs ($AB_4L$ type) always follow the trigonal bipyramidal parent geometry.
Updated On: May 14, 2026
- Linear
- Tetrahedral
- Trigonal bipyramidal
- Trigonal
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The Correct Option is C
Solution and Explanation
Step 1: Concept
Molecular geometry is determined by the VSEPR (Valence Shell Electron Pair Repulsion) theory based on the number of bonding and lone pairs.
Step 2: Meaning
Tellurium (Te) is in group 16 and has 6 valence electrons.
Step 3: Analysis
In $\text{TeF}_4$, Te forms 4 bonds with Fluorine and has 1 lone pair remaining ($4 + 1 = 5$ electron pairs). This corresponds to $sp^3d$ hybridization. The electron pair geometry is trigonal bipyramidal. Due to the lone pair, the molecular shape is "see-saw".
Step 4: Conclusion
Among the given options for electron pair arrangement/parent geometry, Trigonal bipyramidal is correct. Final Answer: (C)
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