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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