The practice that does not come under green chemistry among the following is-
1. | Making use of soap made of vegetable oils instead of using synthetic detergents. |
2. | Using H2O2 for bleaching purposes instead of using chlorine-based bleaching agents. |
3. | Using bicycles for traveling small distances instead of using petrol/diesel based vehicles. |
4. | Using plastic cans for neatly storing substances. |