Oxidation Number Method for balancing Redox Reaction
Consider the following reaction.
Step 1: Assign the oxidation number per atom of an element and write it over their symbols.
Step 2: Identify the elements undergoing a change in oxidation number.
Step 3: Draw a bridge between the same atoms undergoing a change in oxidation number.
Step 4: Balance the loss and gain of electrons by multiplying with small suitable Whole numbers.
Step 5 : Balance the rest of equation by inspection method . Balance the atoms other than oxygen and hydrogen first .
Step 6: Balance oxygen atoms and finally hydrogen atoms .