Acidified [Cu(NH3)4]2+ and [Cu(H2O)4]2+ both react with K4[Fe(CN)6] to give brown ppt. — Coordination Compounds Chemistry Question

💡 Solution & Explanation

Step 1: Write down the Effective Atomic Number (EAN) formula: EAN = Z - (Oxidation State) + 2 * (Number of monodentate ligands), where Z is the atomic number of the metal. Step 2: Substitute the given values (EAN = 36, Z = 26, and oxidation state of M^2+ = +2): 36 = 26 - 2 + 2 * n, where n is the number of ligands. Step 3: Solve for n: 36 = 24 + 2n => 2n = 12 => n = 6. Thus, there are 6 monodentate ligands, corresponding to option (c).