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 reactions in plants. |
The best alternative of tetrachloroethane for dry cleaning is-
1. Liquified CO2 along with suitable detergent.
2. Liquified CO2 along with suitable oil.
3. Liquified SO2 along with suitable detergents.
4. Liquified SO2 along with suitable oil.
The chemical that is an excellent ‘green’ solvent as well as a greenhouse gas is:
1. Methanol
2. CFCs
3. Carbon monoxide
4. Carbon Dioxide