Green chemistry means such reactions which

1. Produce color 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:  Gaseous Pollutants - Oxides of C & N |
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NEET 2021 - Achiever Batch - Aryan Raj Singh
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Which of the following statements about photochemical smog is wrong?

1. It has high concentration of oxidizing agents

2. It has low concentration of oxidizing agents

3. It can be controlled by controlling the release of NO2, hydrocarbon, ozone, etc.

4. Plantation of some plants like pinus helps in controlling photochemical smog.

Subtopic:  Air Pollution - Smog |
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Which one of the following is not a common component of photochemical smog?

1. Ozone

2. Acrolein

3. Peroxyacetyl nitrate

4. Chlorofluorocarbons

Subtopic:  Air Pollution - Smog |
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Which one of the following statements regarding photochemical smog is not correct?

1. Carbon monoxide does not play any role in photochemical smog formation

2. Photochemical smog is an oxidising agent in character

3. Photochemical smog is formed through photochemical reaction involving energy

4. Photochemical smog does not cause irritation in eyes and throat

Subtopic:  Air Pollution - Smog |
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NEET 2021 - Achiever Batch - Aryan Raj Singh
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Which oxide of nitrogen is not a common pollutant introduced into the atmosphere both due to natural and human activity?

1. N2O52. NO23. N2O4. NO

Subtopic:  Gaseous Pollutants - Oxides of C & N |
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Which one of the following statements is not true?

1. Concentration of dissolved oxygen below 6 ppm is good for the growth of fish

2. Clean water would have a BOD value of less than 5 ppm

3. Oxides of sulphur, nitrogen and carbon are the most widespread air pollutant

4. pH of drinking water should be between 6.5-8.5

Subtopic:  Water Pollution - Biological Oxygen Demand |
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Green chemistry means such reactions which

1.  produce colour during reactions

2.  reduce the use and production of hazardous chemicals

3.  are related to the depletion of ozone layer

4.  study the reactions in plants

Subtopic:  Air Pollution - Greenhouse Effect |
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NEET 2021 - Achiever Batch - Aryan Raj Singh
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Among the following, the one that is not a green house gas is:

1.  sulphur dioxide

2.  nitrous oxide

3.  methane

4.  ozone

Subtopic:  Air Pollution - Greenhouse Effect |
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NEET 2021 - Achiever Batch - Aryan Raj Singh
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Among the following gases which one is damaging the ozone layer?

1. CFCs 

2. CO2

3. CH

4. SO2

Subtopic:  Air Pollution - Ozone |
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Please attempt this question first.

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Biosphere is

(1) In which individual interact to each other

(2) By which life originated

(3) The name of a bird

(4) Organic compound by which life diminishes

Subtopic:  Introduction |
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