Which of the Following Complex Ions Is Likely to Absorb

question 31

Multiple Choice

Which of the following complex ions is likely to absorb at 600-700 nm?

• A)[Co(OH₂)₆]²⁺
• B)[Co(NO₂)₆]^4-
• C)[Co(NH₃)₆]²⁺
• D)[Co(CN)₆]^4-
• E)[CoCl₄]^2-

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