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Q. No.Among the following gases, the one that is not a greenhouse gas is :
1. CO
2. O3
3. CH4
4. H2O vapor
Subtopic: Air Pollution - Greenhouse Effect |
59%
From NCERT
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Match the pollutant (s) in Column I with effect (s) in Column II.
| Column I | Column II |
| A. Oxides of Sulphur | 1. Red haze in traffic and congested areas |
| B. Nitrogen dioxide | 2. Damage to kidney |
| C. Lead | 3. ‘Blue baby’ syndrome |
| D. Nitrate in drinking water | 4. Respiratory diseases |
Codes
| A | B | C | D | |
| 1. | 2 | 3 | 4 | 1 |
| 2. | 1 | 2 | 3 | 4 |
| 3. | 1 | 4 | 3 | 2 |
| 4. | 4 | 1 | 2 | 3 |
Subtopic: Water Pollution - Water Pollution & Portable Water |
73%
From NCERT
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Match the terms given in Column I with the compounds given in Column II.
| Column I | Column II |
| A. Acid rain | 1. |
| B. Photochemical smog | 2. |
| C. Combination with hemoglobin | 3. Unsaturated hydrocarbons |
| D. Depletion of the ozone layer | 4. |
Codes
| A | B | C | D | |
| 1. | 4 | 2 | 3 | 1 |
| 2. | 1 | 2 | 3 | 4 |
| 3. | 4 | 3 | 2 | 1 |
| 4. | 4 | 1 | 3 | 2 |
Subtopic: Air Pollution - Acid Rain |
88%
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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What is the process involved for a good produce in the treatment of bad odour, flies, and recycling of waste?
1. It should be kept covered.
2. The recyclable waste should not be dumped in the compost-producing pit.
3. It should be sent to the industries through vendors for recycling.
4. All of the above.
Subtopic: Soil Pollution & Waste Management |
91%
From NCERT
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The correct statement about domestic waste is :
| 1. | Only biodegradable domestic waste can be used as manure. |
| 2. | Non-biodegradable waste should be sent to industries for recycling. |
| 3. | It can be disposed off in a landfill. |
| 4. | All of the above. |
Subtopic: Soil Pollution & Waste Management |
90%
From NCERT
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Phytoplanktons kill the fish because :
| 1. | Phytoplanktons decrease the BOD level that causes the death of fish. |
| 2. | Phytoplanktons increase the BOD level that causes the death of fish. |
| 3. | Phytoplanktons reduce the amount of dissolved CO2. |
| 4. | None of the above. |
Subtopic: Water Pollution - Biological Oxygen Demand |
69%
From NCERT
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In the absence of greenhouse gases -
| 1. | Life on earth would be impossible. |
| 2. | Average temperature of the earth will decrease drastically. |
| 3. | There will be no effect on Earth |
| 4. | Both (1) and (2) |
Subtopic: Air Pollution - Greenhouse Effect |
84%
From NCERT
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Environmental chemistry is best defined as :
1. Study of chemical processes in nature.
2. Study of biochemical processes in nature.
3. Both (1) and (2)
4. None of the above.
Subtopic: Introduction |
81%
From NCERT
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Tropospheric pollution arises due to the presence of:
| 1. | SO2, SO3, and NO2, in the lowest layer of the atmosphere. |
| 2. | SO2, SO3, and NO2, in the uppermost layer of the atmosphere. |
| 3. | SO2, SO3, and NO2, in the middle layer of the atmosphere. |
| 4. | All of the above. |
Subtopic: Air Pollution - Greenhouse Effect |
74%
From NCERT
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