Match the compounds given in Column I with the items given in Column II.
| Column I | Column II | ||
| A. | Benzene sulphonyl chloride | I. | Zwitter ion |
| B. | Sulphanilic acid | II. | Hinsberg reagent |
| C. | Alkyl diazonium salts | III. | Dyes |
| D. | Aryl diazonium salts | IV. | Conversion to alcohols |
Codes:
| A | B | C | D | |
| 1. | II | I | IV | III |
| 2. | III | I | IV | II |
| 3. | I | IV | III | II |
| 4. | IV | III | II | I |
| Column I | Column II |
| A. Benzene sulphonyl chloride B. Sulphanilic acid C. Alkyl diazonium salts D. Aryl diazonium salts |
1.. Hinsberg reagent 2. Zwitter ion (dipolar ion)  3. Conversion to alcohols 4. Dyes |
