A : `XeF_(6)` on the reaction with RbF gives `Rb[XeF_(7)]`
R : `XeF_(6)` is non - reactive .

Options

A. If both Assertion & Reason are true and the reason is the correct explanation of the assertion , then mark (1)
B. If both Assertion & Reason are true but the reason is not the correct explanation of the assertion , then mark (2)
C. If Assertion is true statement but Reason is false , then mark (3)
D. If both Assertion and Reason are false statements , then mark (4)

Answer

To solve the assertion-reason question, we need to analyze both the assertion (A) and the reason (R) provided.

### Step 1: Analyze the Assertion (A)
The assertion states: "XeF₆ on the reaction with RbF gives Rb[XeF₇]."

- **Explanation**: Xenon hexafluoride (XeF₆) is known to react with rubidium fluoride (RbF) to form a coordination complex, Rb[XeF₇]. This reaction is valid and can be represented as:
\[ \text{XeF}_6 + \text{RbF} \rightarrow \text{Rb[XeF}_7] \]
- **Conclusion**: The assertion is correct.

### Step 2: Analyze the Reason (R)
The reason states: "XeF₆ is non-reactive."

- **Explanation**: The statement that XeF₆ is non-reactive is incorrect. In fact, XeF₆ is reactive and can form complexes with other fluorides, such as RbF. The fact that XeF₆ reacts with RbF contradicts the claim that it is non-reactive.
- **Conclusion**: The reason is incorrect.

### Final Conclusion
- Assertion (A) is correct.
- Reason (R) is incorrect.

### Summary
- A is true because XeF₆ does react with RbF to form Rb[XeF₇].
- R is false because XeF₆ is not non-reactive; it is indeed reactive.