Question

MnO4 + I = MnO2 + I2 balance this equation by oxidation method in basic medium and give all the steps

Answer 1

Let us Balance this Equation by the concept of the Oxidation number method.

∴ General Steps ⇒

Step 1. First Write the Given Redox Reaction.

MnO₄ + I⁻ -------- MnO₂ + I₂

Step2.  Identify Oxidation and Reduction half Reaction.

MnO₄ ------ MnO₂ [Reduction]

I⁻ --------I₂   [Oxidation]

Step3. Balance the atoms undergoing change in the Oxidation number.

∴ MnO₄  -------- MnO₂   [Change of 4 units].

2I⁻  ---------- I₂    [Change of 2 units]

Step 4 . Multiply 1st equation by 1 and second equation by 2.

∴ MnO₄  -------- MnO₂  and 4I⁻  ---------- 2I₂  

Step 5. Now, Add both the equations,

∴ 4I⁻ + MnO₄   ---------- I₂  +  MnO₂

Step 6. Now, Balance the charges by adding water and Hydrogen ions.

∴ 4I⁻ + MnO₄  + 2H₂O ---------- I₂  +  MnO₂  + 4OH⁻

This is the Required balanced Chemical Equation.

Hope it helps.

Answer 2

Hope It helps !! The Previous answer is noy balanced !!