JEE MainChemistryCompounds Containing NitrogenMCQ+4 / −1
Carbylamine test is used to detect the presence of primary amino group in an organic compound. Which of the following compound is formed when this test is performed with aniline?
- A
- B
- C
- D
View written solutionFree
Correct answer: D
-
Carbylamine test reaction
The carbylamine test is given by primary amines (both aliphatic and aromatic) when heated with chloroform and alcoholic KOH.
The general reaction is:
The product formed is an isocyanide (carbylamine), which has a very foul smell.
-
Apply to aniline
Aniline is:
Since aniline is a primary aromatic amine, it gives the carbylamine test.
So the reaction is:
-
Identify the product
The compound formed is:
This is called phenyl isocyanide (or phenyl carbylamine).
-
Conclusion
Therefore, in the carbylamine test with aniline, the product formed is phenyl isocyanide.
Since the stored correct answer is D, the correct option must correspond to phenyl isocyanide, .
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