Question:medium
In the Hinsberg method for separation of primary, secondary, and tertiary amines, the reagent used is:
In the Hinsberg method for separation of primary, secondary, and tertiary amines, the reagent used is:
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In the Hinsberg test, primary amines form soluble sulfonamide salts, secondary amines form insoluble salts, and tertiary amines do not react with benzenesulfonyl chloride.
Updated On: Feb 24, 2026
- Nitrous acid
- CHCl₃ + aq. NaOH
- \(\text{C}_6\text{H}_5\text{SO}_2\text{Cl}\)
- HCl / ZnCl₂
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The Correct Option is C
Solution and Explanation
The Hinsberg method differentiates primary, secondary, and tertiary amines. Benzenesulfonyl chloride (\(\text{C}_6\text{H}_5\text{SO}_2\text{Cl}\)) is the reagent, reacting distinctively with each amine type to yield either soluble or insoluble derivatives.
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