Calculate the n-factor of reactants in the given chemical changes
(a) `PH_(3)rarrH_(3)PO_(3)`

Explanation

To calculate the n-factor of the reactant in the given chemical change \( \text{PH}_3 \rightarrow \text{H}_3\text{PO}_3 \), we will follow these steps:

### Step 1: Identify the oxidation states
First, we need to identify the oxidation states of phosphorus in both reactants and products.

- In \( \text{PH}_3 \) (phosphine), the oxidation state of phosphorus (P) is -3.
- In \( \text{H}_3\text{PO}_3 \) (phosphorous acid), the oxidation state of phosphorus is +3.

...