Which one of the following reactions of Xenon compound is not feasible ?

Options

A. `3X_eF_4+6H_2Orarr2X_e+XeO_3+12HF+1.5O_2`
B. `2X_eF_2+2H_2Orarr2X_e+2XeF+4HF+O_2`
C. `XeF_6+RbFrarrRb^(+)[XeF_7] ^-`
D. `XeO_3+rarr 6HFrarrXeF6+2H_2O`

Answer

To determine which reaction of xenon compounds is not feasible, we will analyze each reaction step by step.

### Step 1: Analyze the reactions of Xenon compounds
We have several reactions involving xenon fluorides (XeF4, XeF2, and XeF6) and their hydrolysis or reactions with other substances.

### Step 2: Hydrolysis of XeF4
- **Reaction**: XeF4 + H2O → Xe + 4 HF
- **Products**: This reaction produces xenon gas and hydrofluoric acid (HF).
- **Feasibility**: This reaction is feasible as it can occur spontaneously.

### Step 3: Hydrolysis of XeF2
- **Reaction**: XeF2 + H2O → Xe + 2 HF + O2
- **Products**: This reaction also produces xenon gas, HF, and oxygen.
- **Feasibility**: This reaction is also feasible.

### Step 4: Reaction of XeF6 with RbF
- **Reaction**: XeF6 + RbF → Rb+ + XeF7-
- **Products**: This reaction forms a complex ion.
- **Feasibility**: This reaction is feasible due to complex formation.

### Step 5: Reverse reaction of XeO3 with HF
- **Reaction**: XeO3 + 6 HF ⇌ XeF6 + H2O
- **Products**: This is a reverse reaction where xenon trioxide reacts with hydrofluoric acid to form xenon hexafluoride and water.
- **Feasibility**: This reaction is not feasible because it is non-spontaneous. The formation of XeF6 from XeO3 requires an external energy input, making it non-spontaneous.

### Conclusion
The only reaction that is not feasible is the reverse reaction involving XeO3 and HF to form XeF6. Therefore, the answer to the question is:

**Answer: The reaction of XeO3 + 6 HF ⇌ XeF6 + H2O is not feasible.**

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