Amount of oxalic acid present in a solution can be determined by its titration with `KMnO_(4)` solution in presence of `H_(2)SO_(4)` but not in presence of HCI ? Explain why ?

Explanation

To understand why the amount of oxalic acid can be determined by titration with KMnO4 in the presence of H2SO4 but not in the presence of HCl, we can analyze the chemical reactions involved and the roles of the acids.

### Step-by-Step Solution:

1. **Understanding the Reaction**:
- Oxalic acid (H2C2O4) can be oxidized by potassium permanganate (KMnO4) in acidic medium. The reaction can be represented as:
\[
\text{H}_2\text{C}_2\text{O}_4 + \text{KMnO}_4 \rightarrow \text{CO}_2 + \text{Mn}^{2+} + \text{H}_2\text{O}
...