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MCQ's Test For ECAT Chemistry Chapter 27 Environmental Chemistry
Try The MCQ's Test For ECAT Chemistry Chapter 27 Environmental Chemistry
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Total Questions30
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Time Allowed30
ECAT Chemistry Chapter 27 Environmental Chemistry
00:00
Question # 1
In Antarctica ozone depletion is due to the formation of following compound
Question # 2
The largest item which is recycled is
Question # 3
Which one of the following dissolves more rapidly in blood hemoglobin than oxygen?
Question # 4
Air pollution is not caused by
Question # 5
Phosphate pollution is caused by
Question # 6
Chromium (VI) is highly toxic and can cause
Question # 7
Ecology is a science of environment and deals specially with
Question # 8
Increasing skin cancer and high mutation rate are due to
Question # 9
The toxic organic compounds and heavy metals and metalloids results in contamination of
Question # 10
Which one is not a pollutant normally?
Question # 11
Pollutant of automobile exhausts that affects nervous system/produces mental diseases is
Question # 12
In the atmosphere, O2is about
Question # 13
Ozone in most of the tropical regions acts as a pollutant and causes
Question # 14
Chlorofluorocarbon, CF2CI2, plays an effective role in removing O3(ozone) in the stratosphere. Which reaction does not cause the depletion of ozone
Question # 15
Ozone hole is maximum over
Question # 16
Acid rain is due to increase in atmospheric concentration of
Question # 17
Soil salinity can be measured by
Question # 18
Spraying of DDT produces pollution of
Question # 19
The pH of the rain water in areas where acid rain is the cause of pollution may be
Question # 20
Shahi Qilla may be destroyed by
Question # 21
Hydrocarbans, SO2, CO, NH3, nitrogen oxides and compounds of fluorine are called
Question # 22
When chlorofluoro carbon are subjected to U.V. they form
Question # 23
Which heavy metals do not have any safe limits
Question # 24
Drawback DDT as presticide is
Question # 25
One of the environmental problem is the formation of oil slicks when oil is spilled from tankers in sea water. Which treatment is suitable to remove oil slicks
Question # 26
Polycyolic aromatic hydrocarbons are taught to be
Question # 27
SO2and NO2produce pollution by increasing
Question # 28
Sulphur dioxide affects
Question # 29
Swage water is purified by
Question # 30
Chromium (VI) is highly toxic and can cause
Top Scorers Of ECAT Chemistry Chapter 27 Environmental Chemistry MCQ`s Test
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F Farzand Shah Farzand Shah 10 - Apr - 2024 03 Min 00 Sec 120/120 -
T Tanzeel Ur Rehman 28 - May - 2024 04 Min 15 Sec 115/120 -
M M Umer Arain 24 - Dec - 2024 00 Min 04 Sec 110/120 -
A Alyna Fatima 25 - Mar - 2024 03 Min 12 Sec 110/120 -
S Sarosh Amjad 21 - Jan - 2025 03 Min 44 Sec 110/120 -
A Abid Ali 19 - May - 2024 10 Min 33 Sec 110/120 -
A Alyna Fatima 25 - Mar - 2024 03 Min 28 Sec 105/120 -
Z Zaman Shehzad 24 - May - 2024 09 Min 53 Sec 95/120 -
M Muhammad Uzair 05 - Jun - 2024 03 Min 33 Sec 90/120 -
A Azeema Siddique Muhammad Siddique 13 - Mar - 2024 04 Min 24 Sec 90/120 -
Z Zargaii 92 29 - May - 2024 06 Min 59 Sec 90/120 -
C Cricket Expert's 27 - May - 2024 03 Min 01 Sec 85/120 -
M Muhammad Saleem 06 - Dec - 2024 13 Min 11 Sec 85/120 -
T tayyab ali 20 - May - 2024 19 Min 22 Sec 80/120 -
C Computer mail 10 - Feb - 2026 07 Min 01 Sec 76/120
ECAT Chemistry Chapter 27 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | SO2Makes ______ acid rains |
A. Carbonic acid
B. Sulfuric
C. Nitric acid
D. All of these
|
| 2 | Which is not the affect of polluted air on environment |
A. Acid rain
B. Smog
C. Ozone
D. Global warming
|
| 3 | Chromium (VI) is highly toxic and can cause |
A. Blindness
B. Cancer
C. Liver problems
D. Blood problems
|
| 4 | Which of the following is responsible for depletion of the ozone layer in the upper strata of the atmosphere? |
A. Fullerences
B. Freons
C. Polyhalogens
D. Ferrocene
|
| 5 | Minamata disease is due to pollution of |
A. Organic waste into drinking water
B. Oil spill in water
C. Industrial waste containing mercury into fishing water
D. Arsenic into the atmosphere
|
| 6 | Ecosystem is a smaller unit of |
A. Hydrosphere
B. Lithosphere
C. Biosphere
D. Atmosphere
|
| 7 | Chlorofluorocarbon, CF2CI2, plays an effective role in removing O3(ozone) in the stratosphere. Which reaction does not cause the depletion of ozone | |
| 8 | A pollutant affects |
A. Human health
B. Quality of life
C. Functioning of ecosystem
D. All of these
|
| 9 | Air pollution is not caused by |
A. Pollen grains
B. Hydroelectric power
C. Industries
D. Automobiles
|
| 10 | DDT is |
A. Biodegradable pollutant
B. Nondegradable pollutant
C. Not a pollutant
D. An antibiotic
|
Test Questions
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