One of the hydrolysed product of the following compound does not react with silica of glass vessel:

Options

A. `BF_(3)`
B. `ClF_(5)`
C. `XeF_(2)`
D. `SF_(4)`

Answer

To solve the problem, we need to identify which hydrolyzed product of the given compounds does not react with silica of a glass vessel. Let's go through the steps systematically.

### Step-by-Step Solution:

1. **Identify the Compounds**: The compounds given are ClF5, XeF2, SF4, and BF3. We need to consider the hydrolysis of these compounds.

2. **Hydrolysis of ClF5**:
- ClF5 reacts with water to produce hydrofluoric acid (HF) and chlorine oxides.
- HF is known to react with silica (SiO2) in glass, forming silicon tetrafluoride (SiF4).

3. **Hydrolysis of XeF2**:
- XeF2 reacts with water to produce hydrofluoric acid (HF) and xenon oxides.
- Again, HF will react with silica, similar to ClF5.

4. **Hydrolysis of SF4**:
- SF4 reacts with water to produce sulfuric acid (H2SO4) and hydrofluoric acid (HF).
- HF will also react with silica.

5. **Hydrolysis of BF3**:
- BF3 reacts with water to produce boric acid (H3BO3) and hydrogen fluoride (HF).
- However, BF3 itself does not react with silica.

6. **Conclusion**:
- Among the hydrolyzed products, HF is the common product that reacts with silica from ClF5, XeF2, and SF4.
- The hydrolyzed product from BF3, which is boric acid (H3BO3), does not react with silica.

Thus, the answer is **BF3**, as it does not react with silica of the glass vessel.

### Final Answer:
**Option A: BF3 does not react with silica of the glass vessel.**

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