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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
Which heavy metals do not have any safe limits
Question # 2
One of the environment problem is the formation of oil slicks when oil is spilled from tankers in sea water.
One of the environment 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 # 3
Pathogens in raw water are killed in step:
Question # 4
Fresh water of total earth water is:
Question # 5
Carbon Monoxide is:
Question # 6
Peroxyacetylnitrate (PAN) is an irritant to human beings and it affects:
Question # 7
Troposphere extends upto km:
Question # 8
The normal amount of overhead ozone is about in DU:
Question # 9
Chemicals used to kill herbs are:
Question # 10
Detergent greatly effects the
Question # 11
Part of fresh water consumed in domestic purpose:
Question # 12
Chemicals used to kill pests are:
Question # 13
The largest item which is recycled is
Question # 14
Ecosystem is a smaller unit of
Question # 15
Incineration is a process in which solid waste is burned at high temperature ranging from
Question # 16
Chlorination of water is effective for
Question # 17
The layer of gases around the earth are called?
Question # 18
Requirement of macronutrient per acre of the land is
Question # 19
The incineration may reduce volume of wastes upto:
Question # 20
Ozone layer is present in
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
20 Questions
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Set 5
20 Questions
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Set 6
20 Questions
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Set 7
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Set 8
20 Questions
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Set 9
20 Questions
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Set 10
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Set 11
20 Questions
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Set 12
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Set 13
20 Questions
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Set 14
20 Questions
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Set 15
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Set 16
20 Questions
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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 -
B Basit Khan 09 - Aug - 2022 06 Min 44 Sec 14/20 -
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 -
A Anaya 07 - Jul - 2023 04 Min 28 Sec 13/20 -
U Urooj Wajid 15 - Sep - 2022 06 Min 47 Sec 13/20 -
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 | The smog having high contents of SO2is |
A. Neutral smog
B. Reducing smog
C. Oxidizing smog
D. Artificial smog
|
| 2 | Which gases are produced from landfills? |
A. NH3
B. H2S
C. N2
D. All of these
|
| 3 | Half of the mass of atmosphere is concentrated above earth at the hieght of |
A. 40 Km
B. 25-28 Km
C. 5-6 Km
D. 100 Km
|
| 4 | The normal amount of overhead ozone is |
A. 350 DU
B. 450 DU
C. 400 DU
D. 300 DU
|
| 5 | Ozone is usually produced in the |
A. South polar region
B. North pole region
C. Tropical region
D. Thermosphere zone
|
| 6 | The branch of chemistry interlinked with biology, physics, medicines, agriculture, public health and sanitary engineering etc. is: |
A. Biochemistry
B. Physical chemistry
C. Pharmaceutical chemistry
D. Environmental chemistry
|
| 7 | Transportation causes to produce CO2 in atmosphere: |
A. 72%
B. 73%
C. 74%
D. 75%
|
| 8 | 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
|
| 9 | Which is not a component of environment? |
A. Biosphere
B. Lithosphere
C. Hydrosphere
D. None of these
|
| 10 | The overall effect of the photochemical smog in the after noon is built up of |
A. Neutralization
B. oxidizing agent
C. Reducing agent
D. Activating agent
|
Test Questions