When the Oxalate Ion,C₂O₄^2- Is Bonded to the Iron(III)ion in the Complex

question 144

Multiple Choice

When the oxalate ion,C₂O₄^2- is bonded to the iron(III) ion in the complex ion [Fe(C₂O₄) ₃]^3-,a ________-membered chelate ring is formed.

• A)3
• B)4
• C)5
• D)6

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