| Q.4 | Identify the correct statement about detergents. (I)Cationic detergents have germicidal properties and are expensive. (II)Liquid dishwashing detergents are non-ionic type. (III)Anionic detergents are also used in toothpastes. | |
| Ans | 1. I and II | |
| 2. II and III | ||
| 3. I and III | ||
| 4. I, II and III |
Correct Ans: 4