Sodium fusion extract of an organic compound gives a blood red colouration with few drops of `FeCl_(3)` solution. This indicates the presence of

Options

A. Nitrogen in the organic compound
B. Sulphur in the organic compound
C. Nitrogen and sulphur in the organic compound
D. Sulphur and chlorine in the organic compound

Answer

To solve the question regarding the sodium fusion extract of an organic compound that gives a blood red coloration with FeCl3 solution, we can follow these steps:

### Step 1: Understand the Sodium Fusion Test
The sodium fusion test is used to detect the presence of certain elements in an organic compound, particularly nitrogen, sulfur, and halogens. Sodium metal is used to fuse with the organic compound, which converts these elements into their respective sodium salts.

**Hint:** The sodium fusion test helps identify elements like nitrogen and sulfur in organic compounds.

### Step 2: Analyze the Reaction with FeCl3
When the sodium fusion extract is treated with FeCl3 (Ferric Chloride), a specific color change occurs. The formation of a blood red color indicates the presence of thiocyanate ions (SCN^-), which can be formed from the reaction of sulfur and nitrogen compounds.

**Hint:** The blood red color is a key indicator of the presence of specific ions in the solution.

### Step 3: Identify the Blood Red Complex
The blood red coloration is due to the formation of the complex [Fe(SCN)]^3+, which is formed when FeCl3 reacts with thiocyanate ions. The presence of thiocyanate ions suggests that both sulfur and nitrogen are present in the original organic compound.

**Hint:** The complex formed is crucial in identifying the elements present in the compound.

### Step 4: Conclusion
Since the blood red color indicates the presence of thiocyanate ions, which are derived from both sulfur and nitrogen, we conclude that the organic compound contains both elements.

**Final Answer:** The presence of both nitrogen and sulfur in the compound is indicated by the blood red coloration with FeCl3.