Question

The shape/structure of $[Xe{F}_5{]}^{-}$ and $Xe{O}_3{F}_2,$ respectively, are:

• A. Pentagonal planar and trigonal bipyramidal
• B. Trigonal bipyramidal and trigonal bipyramidal
• C. Octahedral and square pyramidal
• D. Trigonal bipyramidal and pentagonal planar

Answer 1

The correct option is A Pentagonal planar and trigonal bipyramidal

According to VSEPR, hybridization of $[Xe{F}_5{]}^{-}$ : 5 Bond pairs + 2 Lone pairs = 7 hybrid orbitals, $s{p}^3{d}^3$ hybridization and shape is pentagonal planar and $Xe{O}_3{F}_2:5$ Bond pairs + 0 Lone pairs = 5 hybrid orbitals, $s{p}^{3}d$ hybridization and structure is trigonal bipyramidal.