Which of the following species is not stable ?

1.	Which of the following species is not stable ?
Answer» `[SiCl_6]^(2-)` `[SiF_6]^(2-)` `[GeCl_6]^(2-)` `[SN(OH)_6]^(2-)` SOLUTION :Ge, Sn, Si FORM these species `[GeCl_6]^(2-) , [Sn(OH)_6]^(2-) , [SiF_6]^(2-)`due to the presence of d-orbital where as Si will not form `[SiCl_6]^(2-)`because Si can accomodate MAXIMUM 4 `Cl^-`

Discussion