Which species does not exist? | Chemistry | SolveeIt

Question

Which species does not exist?

${{(SiC{{l}_{6}})}^{2-}}$

$CCl_{6}^{2-}$

$GeCl_{6}^{2-}$

$AlCl_{4}^{-}$

Answer

$CCl_{6}^{2-}$

Explanation

Solution

$CCl_{6}^{2-}$ does not exist. The reason is that carbon has no d-orbital, hence it cannot combine with 6 chlorine-atoms. All others (Si, Ge and Al) have d-orbital, hence form the given ions.

Chemistry Question on coordination compounds

Solution