1) Which of the following is a biodegradable pollutant?
2) Atmosphere of big/metropolitan cities is polluted most by
3) The point of temperature inversion between troposphere and ionosphere is called
4) Photochemical smog is formed in
5) Which of the following is a sink for CO?
6) Ozone hole refers to
7) Fish die in water bodies polluted by sewage due to
8) Addition of phosphate fertilizers into water leads to
9) By green chemistry we mean
10) Negative soil pollution is
11) Poisonous gas present in the exhaust fumes of car is
12) The green house effect is caused by
13) About 20 km above the earth there is an ozone layer, which one of the following statements about ozone and ozone layer is true?
14) Surface water contains
15) Ozone is formed in the upper atmosphere from oxygen by the action of
16) Incomplete combustion of petrol or diesel oil in automobile engines can be best detected by testing the fuel gases for the presence of
17) Which one of the following regions of atmosphere contains ozone?
18) Increased asthmatic attacks in certain seasons are related to
19) Cyclone collector is used for minimizing
20) Which of the following statement is false?
21) Eutrophication causes reduction in
22) Ozone hole is maximum over
23) The region which is greatly affected by air pollution is
24) Which of the statement is false?
25) Which of the following is not regarded as a pollutant?
26) The brown, hazy fumes of photochemical smog are due to
27) Which of the following statement is false?
28) BOD is connected with
29) Which of the following is not a part of green chemistry?
30) Carbon monoxide is harmful to human beings as it
31) Which of the following is responsible for depletion of the ozone layer in the upper strata of the atmosphere?
32) In Antarctica, ozone depletion is due to the formation of following compound?
33) Ozone in stratosphere is depleted by
34) Pick up the correct statement.
35) Result of ozone hole is
36) Photochemical smog is caused by
37) Acid rains are produced by
38) DDT is
39) Increasing skin cancer and high mutation rate are due to
40) As it passes into food chain, the concentration of DDT
41) When rain is accompanied by a thunderstorm, the collected rain water will have a pH value
42) The smog is essentially caused by presence of
43) The major air pollutant is
44) Ozone layer of stratosphere requires protection from indiscriminate use of
45) Bhopal gas tragedy of 1984 was caused by
46) Which compound is mainly responsible for the depletion of ozone layer?
47) Carbon monoxide, emitted by automobiles, prevents transport of oxygen in body due to
48) Among the following compounds, which one is not responsible for the depletion of ozone layer?
49) Depletion of ozone layer is due to
50) Which of the following is a living component of atmosphere?
51) Chlorofluorocarbons (CFCs) are widely used in air conditioners, refrigerators etc because of being
52) Which of the following is not a herbicide?
53) Which of the following statements is false?
54) The instrument used for measuring soil salinity is
55) The ozone layer forms naturally by
56) Identify the incorrect statement from the following.
57) Depletion of ozone layer over Antarctica takes place
58) Which one is the most toxic?
59) Identify the wrong statements in the following.
60) Pick up the correct statement
61) Pneumoconiosis is caused by in halation of
62) The water pollutants mainly responsible for the eutrophication are
63) Pick out the correct statement?
64) Gas released during Bhopal tragedy was
65) Mesosphere and thermosphere are collectively known as
66) The brown haze of photochemical smog is largely attributable to
67) Which of the following is not an air pollutant?
68) Select the incorrect statement.
69) Methane gas producing field is
70) The greatest affinity for haemoglobin is shown by
71) Identify the wrong statement in the following
72) Which of the following region is the coldest?
73) Which of the following statements about control of particulate pollution is false?
74) Identify the correct decreasing order of the following with respect to altitude from atmosphere. I. Troposhere II. Mesopshere III. Thermosphere
75) Which of the following is secondary pollutant?
76) The basic component of the smog is
77) In Antarctica ozone depletion is due to the formation of following compound
78) The term acid rain was coined by
79) In which part of the atmosphere, ozone layer is present?
80) Ozone layer is present in
81) Temperature of troposphere decreases with altitude. This is because of
82) The gas that is not considered as a ‘green house gas’ is
83) Which of the following statements is not false?
84) Among the following statements which one is incorrect?
85) The number of ozone molecules converted into oxygen by one molecule of chlorofluorocarbon compound is
86) Use of chlorofluoro carbons is not encouraged because
87) An important product in the ozone depletion by chloroflurocarbons is
88) Which of the following statements is not true?
89) The photochemical smog can be suppressed by
90) Ultraviolet light causes
91) Which of the following acts as a sink for chlorine free radicals?
92) Statement 1: Presently, the global atmosphere is warming up Statement 2: The depletion of stratospheric ozone layer has resulted in increases in ultraviolet radiations reaching the earth
93) Statement 1: Water having pH<5.5 is not suitable for drinking purposes. Statement 2: As the pH of water decreases, the solubility of metal ions increases.
94) Statement 1: Photochemical smog is produced by nitrogen oxides Statement 2: Vehicular pollution is a major source of nitrogen oxides
95) Statement 1: Suspended particulate matter (SPM)is an important pollutant released by diesel vehicles. Statement 2: Catalytic converters greatly reduce pollution caused by automobiles.
96) Statement 1: Presently the global atmosphere is warming up. Statement 2: The depletion of stratospheric ozone layer has resulted in increase in ultraviolet radiations reaching the earth.
97) Statement 1: Carbon monoxide combines with haemoglobin. Statement 2: CO has more affinity for haemoglobin.
98) Statement 1: Acid rain has a pH less than 5 Statement 2: Oxides of nitrogen and sulphur combine with rain water to produce acidic nature  
