Hybridisation is a theoretical concept, as state of hybridisation can not be detected ever the spectroscopically: unlike intermediates or transition state in various reactions but it corrects the predictions which are based on overlapping of pure atomic orbitals. VSEPR theory predicts precisely shape and bond angle in a given molecule.
The structure of `XeF_(6)` in vapour phase is:
A. Peagonal bi pyramidal
B. Trigonal bi pyramidal
C. Capped octahedral
D. Squre bi pyramidal
