Identify the reagent used to distinguish prim | vedclass

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(C) $1$. The $Hinsberg$ test uses $Benzenesulfonyl \ chloride$ $(C_6H_5SO_2Cl)$ as the reagent.$2$. Primary amines react with $C_6H_5SO_2Cl$ to form a

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$C_6H_5SO_2Cl$

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(C) $1$. The $Hinsberg$ test uses $Benzenesulfonyl \ chloride$ $(C_6H_5SO_2Cl)$ as the reagent.$2$. Primary amines react with $C_6H_5SO_2Cl$ to form an $N$-alkylbenzenesulfonamide, which is soluble in alkali due to the acidic hydrogen on the nitrogen atom.$3$. Secondary amines react to form an $N,N$-dialkylbenzenesulfonamide, which lacks an acidic hydrogen and is insoluble in alkali.$4$. Tertiary amines do not react with $C_6H_5SO_2Cl$.

Identify the reagent used to distinguish primary and secondary amines by the $Hinsberg$ test.

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