Which amine reacts with Hinsberg's reagent to produce an alkali insoluble product?

- APrimary amine
- BSecondary amine
- CTertiary amine
- DQuaternary ammonium salt
Solution & Step-by-step Explanation
1. Primary amines react with benzene sulfonyl chloride (Hinsberg's reagent) to form a sulfonamide that has an acidic hydrogen on nitrogen, making it soluble in alkali.2. Secondary amines react to form a sulfonamide with no acidic hydrogen on nitrogen. Thus, the product is insoluble in alkali.3. Tertiary amines do not react with Hinsberg's reagent.