Question:
The product Y for the below reaction is
The product Y for the below reaction is
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Carbylamine test:
Only primary amines give isocyanide (foul smell)
Used for identification of primary amines
Updated On: May 1, 2026
- o-aminobenzaldehyde
- phenyl isocyanide
- benzene diazonium
- o-aminobenzoic acid
- benzoic acid
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Verified By Collegedunia
The Correct Option is B
Solution and Explanation
Concept: Carbylamine Reaction
• Primary amines react with CHCl$_3$ and KOH
• Forms isocyanide (carbylamine) General reaction: \[ RNH_2 + CHCl_3 + 3KOH \rightarrow RNC + 3KCl + 3H_2O \] Mechanism highlights:
• Formation of dichlorocarbene (:CCl$_2$)
• Reaction with primary amine
• Formation of isocyanide (foul smell) For aniline: \[ C_6H_5NH_2 \rightarrow C_6H_5NC \] Hence product is phenyl isocyanide
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