In which of the following, d- orbitals are not used by central atom in hybridisation?

Question

In which of the following, d- orbitals are not used by central atom in hybridisation? (A) PF5 (B) PCl 5 (C) PBr 5 (gaseous) (D) None of these

Tardigrade Admin · Accepted Answer

underset(s)PF 5 exists as undersets p3PF 4+ undersets p3 d2PF 6- underset(s)PCl 5 exists as undersetsp3PCl 4+ undersetsp3d2PCl 6- underset(s)PBr5 exists as undersetsp3PBr+4 Br- undersetsp3dPBr5 (in gaseous)

Q. In which of the following, $d -$ orbitals are not used by central atom in hybridisation?

$P F_{5}$

$PC l_{5}$

$PB r_{5}$ (gaseous)

None of these

$(s) P F_{5}$ exists as $s p^{3} P F_{4}^{+} s p^{3} d^{2} P F_{6}^{-}$

$(s) PC l_{5}$ exists as $s p^{3} PC l_{4}^{+} s p^{3} d^{2} PC l_{6}^{-}$

$(s) PB r_{5}$ exists as $s p^{3} PB r_{4}^{+} B r^{-}$

$s p^{3} d PB r_{5}$ (in gaseous)

Q. In which of the following, d− orbitals are not used by central atom in hybridisation?

PF5​

PCl5​

PBr5​ (gaseous)