Assertion (A): Sodium perxenate `(Na_(4)XeO_(6))` reacts with `NaF` in acidic medium to give `XeO_(3)` and `F_(2)`
Reason (R ): `XeO_(6)^(4-)` is a stronger oxidant than `F_(2)`.

Options

A. If both `(A)` and `(R )` are correct and `(R )` is the correct explanation of `(A)`.
B. If both `(A)` and `(R )` are correct but `(R )` is not the correct explanation of `(A)`.
C. If `(A)` is correct but `(R )` is incorrect.
D. If `(A)` and `(R )` are incorrect.

Explanation

To solve the question, we need to analyze both the assertion and the reason provided.

### Step 1: Analyze the Assertion
The assertion states that sodium perxenate `(Na4XeO6)` reacts with `NaF` in an acidic medium to produce `XeO3` and `F2`.

1. **Chemical Reaction**:
The reaction can be represented as:
\[ XeO_6^{4-} + 2F^- + 6H^+ \rightarrow XeO_3 + F_2 + 3H_2O \]

### Step 2: Analyze the Oxidation States
Next, we need to determine the oxidation states of xenon and fluorine in the reaction:

1. **Oxidation State of Xenon**:
- In `XeO6^{4-}`, the oxidation state of Xe can be calculated as follows:
\[ x + 6(-2) = -4 \implies x - 12 = -4 \implies x = +8 \]
- In `XeO3`, the oxidation state of Xe is:
\[ x + 3(-2) = 0 \implies x - 6 = 0 \implies x = +6 \]

2. **Oxidation State of Fluorine**:
- In `F^-`, the oxidation state is -1.
- In `F2`, the oxidation state is 0.

### Step 3: Determine Oxidation and Reduction
Now, we can identify which species is oxidized and which is reduced:

1. **Reduction**:
- Xenon is reduced from +8 in `XeO6^{4-}` to +6 in `XeO3`.

2. **Oxidation**:
- Fluorine is oxidized from -1 in `F^-` to 0 in `F2`.

### Step 4: Compare Oxidizing Strength
The reason states that `XeO6^{4-}` is a stronger oxidant than `F2`.

1. **Conclusion**:
- Since `XeO6^{4-}` is reduced (gaining electrons) and `F^-` is oxidized (losing electrons), it confirms that `XeO6^{4-}` acts as a stronger oxidizing agent than `F2`.

### Final Conclusion
Both the assertion and the reason are correct, and the reason correctly explains the assertion.

### Answer:
Both the assertion and reason are correct, and the reason is the correct explanation of the assertion.