Question

Identify the complex ion which does not exist.

• A. \([\mathrm{SiF_6}]^{2-}\)
• B. \([\mathrm{GeCl_6}]^{2-}\)
• C. \([\mathrm{Sn(OH)_6}]^{2-}\)
• D. \([\mathrm{SiCl_6}]^{2-}\)

Hint:

Remember the important complexes: \[ \boxed{ [\mathrm{SiF_6}]^{2-}, \quad [\mathrm{GeCl_6}]^{2-}, \quad [\mathrm{Sn(OH)_6}]^{2-} } \] are stable, whereas \[ \boxed{ [\mathrm{SiCl_6}]^{2-} } \] does not exist.

Answer 1

The Correct Option is D