Question:
Which of the following gives isocyanide test?
Which of the following gives isocyanide test?
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The isocyanide test distinguishes primary amines due to their ability to form carbylamines.
Updated On: Mar 5, 2025
- Primary amines
- Secondary amines
- Tertiary amines
- Acid amides
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The Correct Option is A
Solution and Explanation
Step 1: Carbylamine Reaction:
Primary amines react with chloroform and alcoholic KOH to give foul-smelling isocyanides. \[ R-NH_2 + CHCl_3 + 3KOH \rightarrow R-NC + 3KCl + 3H_2O \] Step 2: Why not secondary or tertiary amines?
- Secondary and tertiary amines lack the necessary NH\(_2\) group.
Primary amines react with chloroform and alcoholic KOH to give foul-smelling isocyanides. \[ R-NH_2 + CHCl_3 + 3KOH \rightarrow R-NC + 3KCl + 3H_2O \] Step 2: Why not secondary or tertiary amines?
- Secondary and tertiary amines lack the necessary NH\(_2\) group.
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