4 " mol of "a solution `A^(n+)` requires 1.6 " mol of "`MnO_4^(-)` ions for the oxidation of `A^(n+)` to `AO_3^(ɵ)` in acidic medium the value of n is (a). 1
(b). 2.
(c). 3.
(d). 4.

Explanation

To solve the problem, we need to determine the value of \( n \) in the oxidation reaction of \( A^{n+} \) to \( AO_3^{\circ} \) using \( MnO_4^{-} \) ions in an acidic medium.

### Step-by-Step Solution:

1. **Identify the Reaction**:
The reaction involves the oxidation of \( A^{n+} \) to \( AO_3^{\circ} \). We need to find out how many electrons are involved in this reaction.

2. **Determine the Oxidation State of A**:
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