Calculate the n-factor of reactants in the given chemical changes?
(a) `S_(2)O_(3)^(2-)overset("acidic")rarr S_(4)O_(6)^(2-)`

Explanation

To calculate the n-factor of the reactant \( S_2O_3^{2-} \) in the reaction \( S_2O_3^{2-} \) (thiosulfate) converting to \( S_4O_6^{2-} \) (tetrathionate) in acidic medium, we will follow these steps:

### Step 1: Determine the oxidation states of sulfur in the reactant and product.

1. **For the reactant \( S_2O_3^{2-} \)**:
- Let the oxidation state of sulfur be \( x \).
- The formula can be expressed as:
\[
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