Question
Identify the shape of IF _5 molecule from the following options.
MHT CET
Chemistry
Chemical Bonding and Molecular Structure
2026
MHT CET 2026 (11 April Shift 1)
MHT CET Chemistry Question (2026) — Solution
Options
- A. Trigonal bipyramidal
- B. Square planar
- C. Hexagonal
- D. Square pyramidal
Answer
D. Square pyramidal
Step-by-step solution
The central atom is Iodine (I), which has 7 valence electrons. It forms 5 single bonds with 5 Fluorine (F) atoms. Number of bond pairs = 5 Number of lone pairs = 7 - 5 2 = 1 Total number of electron pairs = 5 + 1 = 6 The hybridization of the central atom is sp^3d^2, which corresponds to an octahedral electron geometry. Due to the presence of 5 bond pairs and 1 lone pair, the molecular shape is square pyramidal. Answer: Square pyramidal
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