In organic compounds, nitrogen is tested in Lassaigne's test as

Options

A. `NaNH_(2)`
B. `NaCN`
C. `NaNO_(2)`
D. `NaNO_(3)`

Answer

To solve the question regarding how nitrogen is tested in organic compounds using Lassaigne's test, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Lassaigne's Test**:
Lassaigne's test is a qualitative analysis method used to detect the presence of certain elements in organic compounds, including nitrogen.

2. **Components of the Test**:
The test involves the use of sodium (Na), carbon (C), and nitrogen (N). These components are crucial for the formation of sodium cyanide (NaCN).

3. **Fusion Process**:
In the test, the organic compound is fused with sodium metal and carbon. This fusion process allows for the reaction between these elements.

4. **Formation of Sodium Cyanide**:
During the fusion, sodium reacts with carbon and nitrogen from the organic compound to form sodium cyanide (NaCN):
\[ \text{Na} + \text{C} + \text{N} \rightarrow \text{NaCN} \]

5. **Testing for Nitrogen**:
The presence of NaCN indicates that nitrogen is present in the organic compound. Thus, the test confirms the presence of nitrogen.

6. **Conclusion**:
Therefore, in Lassaigne's test, nitrogen is tested in organic compounds as sodium cyanide (NaCN).

### Final Answer:
In organic compounds, nitrogen is tested in Lassaigne's test as sodium cyanide (NaCN).

---