Calculate the n-factor of reactants in the given chemical changes?
(d) `FeSO_(4)rarr Fe_(2)O_(3)`

Explanation

To calculate the n-factor of the reactants in the chemical change \( \text{FeSO}_4 \rightarrow \text{Fe}_2\text{O}_3 \), we will follow these steps:

### Step 1: Identify the oxidation states of the elements in the reactant and product.
- In \( \text{FeSO}_4 \):
- Iron (Fe) has an oxidation state of +2.
- Sulfur (S) has an oxidation state of +6.
- Oxygen (O) has an oxidation state of -2.

...