Which of the following species is not having perfect octahedron structure?

CHEMISTRY · Single correct · A Level · Chemistry · Bonding · Bonding

Problem

Which of the following species is not having perfect octahedron structure? (1)

\text{XeF}_6

(2)

\text{SiF}_6^{2-}

(3)

\text{PCl}_6^-

(4)

\text{XeO}_6^{4-}