Question

The hybridisation in SF₆ molecule is
a) sp³
b) sp³d²
c) sp³d
d) sp³d³

Answer 1

The Hybridization in Sulfur Hexafloride(SF₆)  is Sp₃d₂ .

For Better understating Refer to the attachment

Explanation :- Electronic configuration of SF₆ → [Ar] 2s¹, 2p³ ,3d² and the structure of SF₆ is octahedral , it means octahedral electron pair. There is no lone pair left .
The hybrid orbital model is shown in the attachments . In the attachment clearly shown that One s , Three p & Two d . valance shells in sulfur atoms are participating in hybridization. 




Hope it Helps. 

Answer 2

The Hybridization in Sulfur Hexafloride(SF₆)  is Sp₃d₂ .