- 1(current)
Q. No.The correct statement(s) regarding green chemistry is/are:
| 1. | It helps in decreasing environmental pollution. |
| 2. | It prevents or limits chemical pollutants from being introduced into the environment. |
| 3. | It reduces the use and generation of substances hazardous to the environment. |
| 4. | All of the above. |
Subtopic: Green Chemistry |
95%
From NCERT
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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. |
Subtopic: Green Chemistry |
87%
From NCERT
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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. |
Subtopic: Green Chemistry |
83%
From NCERT
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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.
Subtopic: Green Chemistry |
71%
From NCERT
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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
Subtopic: Green Chemistry |
66%
From NCERT
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- 1(current)
Q. No.
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