Oxyacid formed when `NF_(3)` is hydrolysed is

Options

A. `HNO_(2)`
B. `HNO_(4)`
C. `HNO_(3)`
D. None of these

Answer

To determine the oxyacid formed when NF3 (nitrogen trifluoride) is hydrolyzed, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Hydrolysis**:
Hydrolysis is a chemical reaction involving the addition of water to a substance. In this case, we are looking at the hydrolysis of nitrogen trifluoride (NF3).

2. **Reaction of NF3 with Water**:
When NF3 is hydrolyzed, it reacts with water (H2O). The general reaction can be written as:
\[ NF_3 + H_2O \rightarrow HNO_2 + HF \]
Here, NF3 reacts with water to produce nitrous acid (HNO2) and hydrofluoric acid (HF).

3. **Identifying the Oxyacid**:
An oxyacid is defined as an acid that contains oxygen, hydrogen, and another element. In this case, HNO2 (nitrous acid) fits this definition as it contains nitrogen (N), oxygen (O), and hydrogen (H).

4. **Conclusion**:
The oxyacid formed when NF3 is hydrolyzed is nitrous acid (HNO2). Therefore, the correct answer to the question is:
\[ \text{HNO}_2 \]

### Final Answer:
The oxyacid formed when NF3 is hydrolyzed is **HNO2**.