Which does not exist ?

Options

A. `[SiCl_(6)]^(2-)`
B. `[GeF_(6)]^(2-)`
C. `[C Cl_(6)]^(2-)`
D. `[SnCl_(6)]^(2-)`

Answer

C

Explanation

Due to non-availability of d-subshell in the valence shell, carbon cannot exapnds its octet. As such `[C Cl_(6)]^(2-)` does not exist.