NTA Abhyas NEET2020ChemistryAminesPractice
The test that is done for the differentiation of primary amines from secondary and tertiary amine is:
Options
- AHell-Volhard Zelinsky reaction
- BTollen’s reagent
- CAzo dye test
- DCarbylamine test
Correct answer
D. Carbylamine test
Step-by-step solution
The Carbylamine reaction is a chemical test for detection of primary amines. In this reaction, the analyte is heated with alcoholic potassium hydroxide and chloroform. If a primary amine is present, the isocyanide is formed. For example, the reaction with ethylamine: C 2 H 5 NH 2 + CHCl 3 + 3 KOH → C 2 H 5 NC + 3 KCl + 3 H 2 O Ethylamine       Chloroform                           Ethyl   iso