Match List-I with List-II :
List-I List-II
(a) Biochemical oxygen demand (i) Oxidising mixture
(b) Photochemical smog (ii) Polar stratospheric cloud
(c) Classical smog (iii) Organic matter in water
(d) Ozone layer depletion (iv) Reducing mixture
Choose the correct answer from the options given below:
(a) (b) (c) (d)
1. (i) (iv) (ii) (iii)
2. (iii) (iv) (i) (ii)
3. (iii) (i) (iv) (ii)
4. (iv) (iii) (ii) (i)

Subtopic:  Air Pollution - Smog | Water Pollution - Biological Oxygen Demand |
 71%
From NCERT
NEET - 2022
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A student collected samples from two water bodies A and B in a metro city. The biochemical oxygen demand for 'A' is 3 ppm while for B is found to be 18 ppm. Which one of the following is true? 
1. Both A and B are clean 
2. Both A and B are polluted 
3. A is clean but B is polluted 
4. A is polluted but B is clean 

Subtopic:  Water Pollution - Biological Oxygen Demand |
 85%
From NCERT
NEET - 2022
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The pollution due to oxides of sulphur gets enhanced due to the presence of : 
a. particulate matter 
b. ozone 
c. hydrocarbons 
d. hydrogen peroxide 
Choose the most appropriate answer from the options given below: 
1.  a, c, d only 
2. a, d only 
3. a , b, d only 
4. b, c, d only 
Subtopic:  Air Pollution - Ozone |
From NCERT
NEET - 2022
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Given below are two statements:
Statement I: The nutrient deficient water bodies lead to eutrophication. 
Statement II: Eutrophication leads to decrease in the level of oxygen in the water bodies. 
In the light of the above statements choose the correct answer from the options given below:
1. Statement I is incorrect but Statement II is true. 
2. Both Statement I and Statement II are true.
3. Both Statement I and Statement II are false. 
4. Statement I is correct but Statement II is false. 
Subtopic:  Water Pollution - Eutrophication |
From NCERT
NEET - 2023
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Which statement is not true about photochemical smog?
1. Photochemical smog is harmful to humans but has no effect on plants.
2. Plants like Pinus, Juniparus can help in reducing the photochemical smog.
3. Photochemical smog occurs in warm, dry, and sunny climates.
4. Common components of photochemical smog are ozone, nitric oxide, acrolein, formaldehyde, and peroxyacetyl nitrate. 
Subtopic:  Air Pollution - Smog |
 51%
From NCERT
NEET - 2023
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Match List-1 with List-II

List-I List-II
(a). 2SO2(g)+O2(g)2SO3(g) (i). Acid rain
(b). 
(ii). Smog
(c). CaCO3+H2SO4
CaSO4+H2O+CO2
(iii). Ozone depletion
(d). NO2(g)hvNO(g)+O(g) (iv). Tropospheric pollution

Choose the correct answer from the options given below:

(a). (b). (c). (d).
1. (iv). (iii). (i). (ii).
2. (iii). (ii). (iv). (i).
3. (i). (ii). (iii). (iv).
4. (ii). (iii). (iv). (i).
Subtopic:  Air Pollution - Smog |
 61%
From NCERT
NEET - 2021
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Which of the following statement is NOT true about acid rain?

1.  It is due to the reaction of SO2, NO2, and CO2 with rainwater
2.  Causes no damage to monuments like the Taj Mahal.
3.  It is harmful to plants.
4.  Its pH is less than 5.6


 

Subtopic:  Air Pollution - Acid Rain |
 86%
From NCERT
NEET - 2020
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The incorrect statement about carbon monoxide is-

1. It reduces the oxygen-carrying ability of blood.
2. The carboxyhaemoglobin (haemoglobin bound to CO) is less stable than oxyhaemoglobin.
3. It is produced due to incomplete combustion.
4. It forms carboxyhaemoglobin.

Subtopic:  Air Pollution - Smog |
 86%
From NCERT
NEET - 2020
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The liquefied gas that is used in dry cleaning along with a suitable detergent is-

1. Water gas

2. Petroleum gas

3. NO2

4. CO2

Subtopic:  Wastes & Its Management |
From NCERT
NEET - 2019
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Among the following, the one that is not a greenhouse gas is:

1. Sulphur dioxide

2. Nitrous oxide

3. Methane

4. Ozone

Subtopic:  Air Pollution - Greenhouse Effect |
 57%
From NCERT
NEET - 2019
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