If the central atom is of third row or below this in the periodic table, then lone pair will occupy a stereochemically inactive s -orbital and bonding will be through almost pure p -orbitals and bond angles are nearly 90∘ , if the substituent's electronegativity value is ≤2.5 .
The hybridisation of atomic orbitals of central atom "Xe" in XeO4 , XeO2F2 and XeOF4 respectively.
a. sp3,sp3d2,sp3d2
b. sp3d,sp3d,sp3d2
c. sp3,sp3d2,sp3d
d. sp3,sp3d,sp3d2