Which one of the following reactions does not come under hydrolysis type reaction?

Options

A. `SiCl_4(l) + 2H_2O(l) rarr SiO_2(s) + 4HCl(aq)`
B. `Li_3N(s) + 3H_2O(l) rarr NH_3(g) + 3LiOH(aq)`
C. `2F_2(g) + 2H_2O(l) rarr 4HF(aq) + O_2(g)`
D. `P_4O_(10)(s) + 6H_2O(l) rarr 4H_3PO_4(aq)`

Answer

To determine which of the following reactions does not come under hydrolysis type reaction, we need to understand what hydrolysis is. Hydrolysis is a chemical reaction in which water is used to break down a compound. This typically involves the addition of water to a salt or a compound, resulting in the formation of new products.

### Step-by-step Solution:

1. **Identify Hydrolysis Reactions**: Hydrolysis reactions involve the interaction of water with a compound, leading to the breakdown of that compound. We will analyze each reaction provided in the options.

2. **Analyze Each Reaction**:
- **Reaction 1: SiCl4 + H2O → SiO2 + HCl**
- In this reaction, SiCl4 reacts with water, resulting in the formation of SiO2 and HCl. This is a hydrolysis reaction because water is breaking down the SiCl4.

- **Reaction 2: Li3N + H2O → LiOH + NH3**
- Here, lithium nitride reacts with water to produce lithium hydroxide and ammonia. This is also a hydrolysis reaction as water is involved in breaking down Li3N.

- **Reaction 3: F2 + H2O → HF + O2**
- In this case, fluorine reacts with water to produce hydrofluoric acid and oxygen. However, the water does not break down the F2 molecule in the same way as in the previous examples. The reaction does not involve the hydrolysis of a compound but rather a reaction where water is a reactant. Thus, this does not fit the classic definition of hydrolysis.

- **Reaction 4: P4O10 + H2O → H3PO4**
- This reaction involves phosphorus pentoxide reacting with water to form phosphoric acid. This is a hydrolysis reaction because water is used to break down P4O10.

3. **Conclusion**: Based on the analysis, the reaction that does not come under hydrolysis type reaction is **Reaction 3: F2 + H2O → HF + O2**.

### Final Answer:
The reaction that does not come under hydrolysis type reaction is **F2 + H2O → HF + O2**.