In the complex ion [Fe(CN)6]3-, what is the oxidation state of iron? (2023)

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Question: In the complex ion [Fe(CN)6]3-, what is the oxidation state of iron? (2023)

Options:

Correct Answer: +3

Exam Year: 2023

Solution:

In [Fe(CN)6]3-, the CN- ligand has a charge of -1 and there are six CN- ligands. Therefore, the total negative charge is -6. To balance the -6 charge with the overall -3 charge of the complex, the oxidation state of iron must be +3.

In the complex ion [Fe(CN)6]3-, what is the oxidation state of iron? (2023)

Practice Questions

In the complex ion [Fe(CN)6]3-, what is the oxidation state of iron? (2023)

Questions & Step-by-Step Solutions

In the complex ion [Fe(CN)6]3-, what is the oxidation state of iron? (2023)

Step 1: Identify the complex ion, which is [Fe(CN)6]3-.
Step 2: Determine the charge of the CN- ligand, which is -1.
Step 3: Count the number of CN- ligands in the complex. There are 6 CN- ligands.
Step 4: Calculate the total negative charge from the CN- ligands: 6 ligands * -1 charge = -6.
Step 5: The overall charge of the complex ion is -3.
Step 6: To find the oxidation state of iron (Fe), set up the equation: Oxidation state of Fe + Total charge from CN- ligands = Overall charge of the complex.
Step 7: Substitute the values into the equation: Oxidation state of Fe + (-6) = -3.
Step 8: Solve for the oxidation state of Fe: Oxidation state of Fe = -3 + 6 = +3.

Oxidation State Calculation – Determining the oxidation state of an element in a complex ion by balancing the charges of the ligands and the overall charge of the complex.
Coordination Chemistry – Understanding the role of ligands and their charges in coordination compounds.

In the complex ion [Fe(CN)6]3-, what is the oxidation state of iron? (2023)

What’s inside this PDF?

In the complex ion [Fe(CN)6]3-, what is the oxidation state of iron? (2023)

Practice Questions

Questions & Step-by-Step Solutions

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