Assertion : `NH_(2)=overset(S)overset(||)(C)-NH_(2)` gives red colour in Lassaigne's test.
Reason : Compounds having N along with C give red colour in Lassaigne's test for nitrogen.

Options

A. If both assertion and Reason are true, and reason is the true explanation of the assertion.
B. If both assertion and reason are true, but reason is not the true explanation of the assertion.
C. If assertion is true, but reason is false
D. If both assertion and reason are false

Explanation

To solve the question, we need to evaluate both the assertion and the reason provided.

### Step 1: Understand the Assertion
The assertion states that the compound \( \text{NH}_2=\overset{S}{\overset{||}{\text{C}}}-\text{NH}_2 \) gives a red color in Lassaigne's test.

### Step 2: Understand Lassaigne's Test
Lassaigne's test is a qualitative analysis method used to detect the presence of nitrogen, sulfur, and halogens in organic compounds. The test involves fusing the organic compound with sodium metal to form sodium extract.

### Step 3: Analyze the Components of the Compound
The compound \( \text{NH}_2=\overset{S}{\overset{||}{\text{C}}}-\text{NH}_2 \) contains:
- Nitrogen (N)
- Carbon (C)
- Sulfur (S)

### Step 4: Determine the Color Reaction
In Lassaigne's test, if nitrogen is present along with carbon and sulfur, the test will yield a red color due to the formation of a complex with the sodium extract.

### Step 5: Evaluate the Reason
The reason states that compounds having nitrogen along with carbon give a red color in Lassaigne's test for nitrogen. This is indeed true, as the presence of nitrogen in the compound contributes to the color change observed in the test.

### Conclusion
Both the assertion and the reason are correct. The assertion is true because the compound does give a red color in Lassaigne's test, and the reason is also true as it correctly explains why the color change occurs.

### Final Answer
Both the assertion and reason are correct.

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