Calculate the n- factor of reactants in the given chemical changes?
(a) `K_(2)Cr_(2)O_(7)overset(H^(+))rarr Cr^(+3)`

Explanation

To calculate the n-factor of the reactants in the given chemical change, we will follow these steps:

### Step 1: Identify the Reactants and Products
The given reaction is:
\[ K_2Cr_2O_7 \overset{H^+}{\rightarrow} Cr^{3+} \]

### Step 2: Determine the Oxidation States
- In \( K_2Cr_2O_7 \):
...