Calculate the n-factor of reactants in the given chemical changes?
(b) `I^(-)rarrI_(2)`

Explanation

To calculate the n-factor of the reactants in the given chemical change \( I^{-} \rightarrow I_{2} \), we will follow these steps:

### Step 1: Identify the oxidation states
In the reactant \( I^{-} \), the oxidation state of iodine (I) is -1. In the product \( I_{2} \), which is elemental iodine, the oxidation state of iodine is 0.

### Step 2: Determine the change in oxidation state
The change in oxidation state can be calculated as follows:
- Initial oxidation state of iodine = -1
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