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What is the primary valence of iron in the coordination entity of compound Fe4[Fe(CN)6]3?
- a)0
- b)+2
- c)+3
- d)+4
Correct answer is option 'B'. Can you explain this answer?
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What is the primary valence of iron in the coordination entity of comp...
Primary Valence of Iron in Fe4[Fe(CN)6]3 Coordination Entity
The primary valence of iron in the coordination entity of compound Fe4[Fe(CN)6]3 is 2.
Explanation:
- Fe4[Fe(CN)6]3 is a coordination compound containing four iron atoms and three [Fe(CN)6]3- anions.
- In the complex anion [Fe(CN)6]3-, the central iron ion has a coordination number of 6 and is surrounded by six cyanide ligands.
- Each cyanide ligand forms a coordinate covalent bond with the central iron ion, donating a pair of electrons to form a stable complex.
- The iron atoms in the compound Fe4[Fe(CN)6]3 have different oxidation states, namely +2 and +3.
- The iron atoms with oxidation state +3 act as counterions that balance the charge of the complex anion [Fe(CN)6]3-.
- The iron atoms with oxidation state +2 are part of the complex anion [Fe(CN)6]3- and have a primary valence of 2, as they are surrounded by six ligands that form coordinate covalent bonds with them.
- The primary valence of an atom in a coordination compound is the number of ligands that form coordinate covalent bonds with the atom.
- Therefore, the primary valence of iron in the coordination entity of compound Fe4[Fe(CN)6]3 is 2.
Conclusion:
The primary valence of iron in the coordination entity of compound Fe4[Fe(CN)6]3 is 2, which indicates that the iron atoms with oxidation state +2 are surrounded by six ligands that form coordinate covalent bonds with them.
The primary valence of iron in the coordination entity of compound Fe4[Fe(CN)6]3 is 2.
Explanation:
- Fe4[Fe(CN)6]3 is a coordination compound containing four iron atoms and three [Fe(CN)6]3- anions.
- In the complex anion [Fe(CN)6]3-, the central iron ion has a coordination number of 6 and is surrounded by six cyanide ligands.
- Each cyanide ligand forms a coordinate covalent bond with the central iron ion, donating a pair of electrons to form a stable complex.
- The iron atoms in the compound Fe4[Fe(CN)6]3 have different oxidation states, namely +2 and +3.
- The iron atoms with oxidation state +3 act as counterions that balance the charge of the complex anion [Fe(CN)6]3-.
- The iron atoms with oxidation state +2 are part of the complex anion [Fe(CN)6]3- and have a primary valence of 2, as they are surrounded by six ligands that form coordinate covalent bonds with them.
- The primary valence of an atom in a coordination compound is the number of ligands that form coordinate covalent bonds with the atom.
- Therefore, the primary valence of iron in the coordination entity of compound Fe4[Fe(CN)6]3 is 2.
Conclusion:
The primary valence of iron in the coordination entity of compound Fe4[Fe(CN)6]3 is 2, which indicates that the iron atoms with oxidation state +2 are surrounded by six ligands that form coordinate covalent bonds with them.
Community Answer
What is the primary valence of iron in the coordination entity of comp...
This compound, also known as Prussian blue, dissociates into 4 Fe3+ and 3[Fe(CN)6]4- ions, of which the latter is the coordination entity having a charge of -4.
The Fe atom in question is the one inside the bracket. Since CN has a charge of -1 and there are 6 of them, the primary valence of Fe will be 6 – 4 = +2.
The Fe atom in question is the one inside the bracket. Since CN has a charge of -1 and there are 6 of them, the primary valence of Fe will be 6 – 4 = +2.
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What is the primary valence of iron in the coordination entity of compound Fe4[Fe(CN)6]3?a)0b)+2c)+3d)+4Correct answer is option 'B'. Can you explain this answer? for Class 12 2025 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about What is the primary valence of iron in the coordination entity of compound Fe4[Fe(CN)6]3?a)0b)+2c)+3d)+4Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 12 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What is the primary valence of iron in the coordination entity of compound Fe4[Fe(CN)6]3?a)0b)+2c)+3d)+4Correct answer is option 'B'. Can you explain this answer?.
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