Which one of the following is not a common component of Photochemical Smog?
1. Ozone
2. Acrolein
3. Peroxyacetyl nitrate
4. Chlorofluorocarbons
Green chemistry means such reactions that:
| 1. | Produce colour during reactions. |
| 2. | Reduce the use and production of hazardous chemicals. |
| 3. | Are related to the depletion of the ozone layer. |
| 4. | Study the reaction in plants. |