The complex ion [Fe(CN)6]^4- contains : — Coordination Compounds Chemistry Question

💡 Solution & Explanation

Step 1: Calculate the Effective Atomic Number (EAN) or the total number of electrons surrounding the Fe^2+ ion in the [Fe(CN)6]^4- complex. Step 2: Fe (Z = 26) loses 2 electrons to form Fe^2+, leaving 24 electrons. Six monodentate CN^- ligands each donate 2 electrons to the metal, contributing 12 electrons. Step 3: Total electrons on the central cation = 24 + 12 = 36 electrons. Thus, statement (a) is correct.