On complete reaction of with oxalic acid in an aqueous solution containing KOH, resulted in the formation of product A. The secondary valency of Fe in the product A is …………..(Round off to the Nearest Integer)
Step 1: Forming the complete reaction
Ferric chloride reacts with Oxalic acid in an aqueous solution of Potassium hydroxide .
The product formed is Potassium trioxalatoferrate(III) , Potassium chloride, and water
The complete reaction is:
Step 2: Calculating the secondary valency of Iron
In the compound, Potassium trioxalatoferrate(III) , the cation and anions are:
Here, the oxalate is a bidentate ligand and 3 Oxalate are attached to iron.
Now we know that, secondary valency is nothing but the number of ligands that are attached to the central metal atom.
Now since the oxalate is a bidentate ligand, so the secondary valency of the Iron(Fe) is