Which is the strongest oxidising agent among `CIO_(4)^(-),BrO_(4)^(-)` and `IO_(3)^(-)`

Explanation

To determine which of the given species \( \text{ClO}_4^{-} \), \( \text{BrO}_4^{-} \), and \( \text{IO}_3^{-} \) is the strongest oxidizing agent, we need to analyze the oxidation states of the central atoms in each ion.

### Step-by-Step Solution:

1. **Identify the Oxidation States**:
- For \( \text{ClO}_4^{-} \):
- The oxidation state of oxygen (O) is -2. Since there are 4 oxygen atoms, their total contribution is \( 4 \times (-2) = -8 \).
- Let the oxidation state of chlorine (Cl) be \( x \). The overall charge of the ion is -1.
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