The IUPAC name of the coordination compound $\mathrm{K}_3\left[\mathrm{Fe}(\mathrm{CN})_6\right]$ is

• A

  Potassium hexacyanoferrate (II)
• Correct answer
  B

  Potassium hexacyanoferrate (III)
• C

  Potassium hexacyanoiron (II)
• D

  tripotassium hexcyanoiron (II)

Hence, the correct answer is option: 'B'.