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Chapter 21 is an important part of MDCAT Chemistry that covers polymers and biological macromolecules. It includes the formation and uses of addition polymers like polyethene, polystyrene, and polyvinyl chloride (PVC), as well as condensation polymers such as polyesters (terylene) and polyamides (nylon-6,6). Understanding these topics helps students grasp how small molecules combine to form large, useful materials found in everyday life.
This chapter also explains the structure of proteins , including their primary and secondary structures , and the structure and function of nucleic acids (DNA) , which carry genetic information. By attempting the MDCAT Chemistry Chapter 21 MCQ Test with Answers , students can review key concepts, check their understanding, and strengthen their preparation for the exam.
MCQ's Test For MDCAT Chemistry Chapter 21 Environmental Chemistry Online Test
Try The MCQ's Test For MDCAT Chemistry Chapter 21 Environmental Chemistry Online Test
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Total Questions20
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Time Allowed20
MDCAT Chemistry Chapter 21 Environmental Chemistry Online Test
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Question # 1
Soil remediation means
Question # 2
Many petroleum products are:
Question # 3
Surface and ground water sources are contaminated by various human activities. Which of the following is not human activity that causes contamination in fresh water
Question # 4
Chemicals used to kill fungi are:
Question # 5
Water is considered pollutant when value of Do is
Question # 6
In addition to many pollutants present in ground water, a successful study was conducted to remove a highly Toxic chemical.What chemical is this
Question # 7
Polar ice caps and glaciers consists total earth water:
Question # 8
In Purification of potable water the coagulant used is
Question # 9
One of the environmental problem is the formation of oil slicks when oil is spilled form tankers in sea water. Which treatment is suitable to remove oil slicks
Question # 10
Coagulation removes suspended particles in ran water:
Question # 11
Men residence time of methane in atmosphere in years is:
Question # 12
Chemicals used to kill pests are:
Question # 13
Water bodies are included in:
Question # 14
The percentage of SO2 produced by volcanoes is:
Question # 15
The pH range of acid rain is?
Question # 16
Natural water is
Question # 17
Ozone layer is
Question # 18
Contamination of water of tanning industries is due to:
Question # 19
Leaching of nutrients is due to
Question # 20
Alkali metals react viotlently with halogens:
Prepare Complete Set Wise MDCAT Chemistry Chapter 21 Environmental Chemistry Online Test MCQs Online With Answers
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Set 1
20 Questions
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Set 2
20 Questions
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Set 3
20 Questions
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Set 4
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Set 5
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Set 6
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Set 7
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Set 8
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Set 9
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Set 10
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Set 11
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Set 12
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Set 13
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Set 14
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Set 15
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Set 16
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Set 17
3 Questions
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Top Scorers Of MDCAT Chemistry Chapter 21 Environmental Chemistry Online Test MCQ`s Test
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M Munaza 11 - Oct - 2022 00 Min 07 Sec 20/20 -
L Laiba Khan 24 - Jul - 2022 02 Min 18 Sec 16/20 -
S Sania Abbas 25 - Jul - 2022 06 Min 13 Sec 16/20 -
T tahreem fatima 12 - Nov - 2022 00 Min 04 Sec 15/20 -
F Filza Ahsan 11 - Nov - 2022 01 Min 33 Sec 15/20 -
F Faiz Barvi443 19 - Mar - 2023 03 Min 29 Sec 14/20 -
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A Amat Nur 27 - Jun - 2023 07 Min 07 Sec 14/20 -
A Abdullah 11 - Apr - 2023 10 Min 50 Sec 14/20 -
D Dania 01 - Jan - 2023 14 Min 03 Sec 14/20 -
A Ali Ahmed Tauqeer 03 - Mar - 2024 03 Min 27 Sec 13/20 -
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M Meer Sadeed 07 - Sep - 2023 10 Min 50 Sec 13/20 -
R Rana Ubaid Chohan 16 - Jul - 2022 10 Min 50 Sec 13/20
MCAT Chemistry Chapter 21 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | Which of the following human activities are contaminating surface and ground waters? |
A. pesticides
B. septic ranks
C. petroleum and natural gas production
D. all of these
|
| 2 | When chlorofluoro carbon are subjected to U.V they form |
A. Cations
B. Aninons
C. Free radicals
D. None of these
|
| 3 | The temperature of in the incineration of industrial and hazardous waste process has range |
A. 900 - 1000°C
B. 250 - 500°C
C. 950 - 1300°C
D. 500 - 900°C
|
| 4 | A single free chlorine redical can destroy ozone molecules upto: |
A. 100000
B. 100
C. 1000
D. 10000
|
| 5 | Organic pollutants in water are measured by |
A. DO
B. COD
C. Water logging
D. PH
|
| 6 | The layer of gases around the earth are called? |
A. Atmosphere
B. Hydrosphere
C. Lithosphere
D. All of these
|
| 7 | Ecosystem is a smaller unity of |
A. Nydosphere
B. Biosphere
C. Lithosphere
D. Attmosphere
|
| 8 | Photo chemical smog contains ______ as main reactants |
A. Nitrons oxide and unburnt hydrocarbons
B. Nilric oxide and unburnt hydrocarbons
C. No and burnt hydrocarbons
D. N2O and burnt hydrocarbons
|
| 9 | Chemical equilibrium involving reactants and products in more than one phase is called: |
A. Homogeneous
B. Heterogeneous
C. Dynamic
D. Static
|
| 10 | During incineration temperature range of non-rotating chamber is |
A. 900-1000C°
B. 650-1100C°
C. 950-1300C°
D. 700-900C°
|
Test Questions