CBSE Class 12 Chemistry — The IUPAC name of the coordinati

Q: The IUPAC name of the coordination compound K3Fe(C2O4)3 is:

To name K3Fe(C2O4)3: 1. Name the cation first: Potassium. 2. Name the ligands alphabetically: tris(oxalato). 3. Name the central metal atom with its oxidation state in Roman numerals in brackets. Since the complex is an anion (Fe(C2O4)33-), the iron is named ferrate, and its oxidation state is +3 (calculated as +3 + x + 3(-2) = 0 => x = +3). Thus, the IUPAC name is Potassium trioxalatoferrate(III).

CBSE · Class 12 · Chemistry · Coordination CompoundsThe IUPAC name of the coordination compound K3Fe(C2O4)3 is:

Step-by-Step Solution

To name K3[Fe(C2O4)3]: 1. Name the cation first: Potassium. 2. Name the ligands alphabetically: tris(oxalato). 3. Name the central metal atom with its oxidation state in Roman numerals in brackets. Since the complex is an anion ([Fe(C2O4)3]3-), the iron is named ferrate, and its oxidation state is +3 (calculated as +3 + x + 3(-2) = 0 => x = +3). Thus, the IUPAC name is Potassium trioxalatoferrate(III).

Detailed Options Breakdown

Option : Potassium trioxalatoiron(III)

Incorrect choice. This distractor represents a common misunderstanding of the core principles of Coordination Compounds.

Option 1: Potassium tris(oxalato)iron(III)

Incorrect choice. This distractor represents a common misunderstanding of the core principles of Coordination Compounds.

Option 2: Potassium trioxalatoferrate(III) (Correct Answer)

Correct choice. Refer to the step-by-step verified solution guidelines above for details.

Option 3: Potassium ferric oxalate

Incorrect choice. This distractor represents a common misunderstanding of the core principles of Coordination Compounds.

💡 Study Guide: This question tests core syllabus concepts from Coordination Compounds. For formulas, key summaries, and mock exam reference guides, read the full Coordination Compounds Revision Notes.

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