Calculate the n-factor of reactants in the given chemical changes
(b) `CuSrarrCu^(2+)+SO_(2)`

Explanation

To calculate the n-factor of the reactants in the given chemical change \( \text{CuS} \rightarrow \text{Cu}^{2+} + \text{SO}_2 \), we will follow these steps:

### Step 1: Write the balanced chemical equation
The reaction is given as:
\[ \text{CuS} \rightarrow \text{Cu}^{2+} + \text{SO}_2 \]

...