Why Might a Cyano Complex of a Metal Appear Yellow

question 14

Multiple Choice

Why might a cyano complex of a metal appear yellow and the chloride complex of the same metal appear green?

• A) The cyanide ions transmits yellow light more efficiently than the chloride ions.
• B) The cyanide ions splits the d orbital energies more than the chloride ions,resulting in the cyanide complex absorbing yellow light.
• C) The cyanide ions splits the d orbital energies more than chloride ions,resulting in the absorption band for the cyanide complex being shifted to shorter wavelengths.
• D) The chloride ions splits the d orbital energies more than cyanide ions,resulting in the absorption band for the chloride complex being shifted to shorter wavelengths.
• E) The chloride ions splits the d orbital energies more than the cyanide ions,resulting in the chloride complex absorbing yellow light.

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