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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
Chloroform is carcinogenic:
Question # 2
Polar ice caps and glaciers consists total earth water:
Question # 3
Fungicides are the pesticides which
Question # 4
Heat balance of earth is maintained by sphere:
Question # 5
Surface and ground water sources are contaminated by various human activities. Which of the following is not a human activity that causes contamination in fresh water
Question # 6
Most harmful of biosphere is
Question # 7
How can heavy metal contamination like the presence of Hg or Pb may be removed from the soil
Question # 8
Choose the correct statements
Question # 9
It is a biodegradable pollutant
Question # 10
Water which forms scum with soap is called
Question # 11
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 # 12
Ozone is a gas having boiling point
Question # 13
A pollutant affects
Question # 14
Dissolved impurities of potable water can be separated by the process of
Question # 15
Which is the most toxic among the given?
Question # 16
Lithosphere extends upto kilometer of earth crust in depth:
Question # 17
Which is not the affect of polluted air on environment
Question # 18
Water cover earth surface more than:
Question # 19
What is component of environment?
Question # 20
What is the cause of water pollution
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 -
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 | Increased awareness of environment issues has led chemist to develop products and processes that do not impact on the environment in terms of pollution or depletion of sources. To help chemist to achieve this aim, some principles are drawn, which one is not the guiding principle |
A. avoid waste production
B. use no solvent
C. use a catalyst
D. devise a multistep procedure for synthesis of new compounds
|
| 2 | Which is not an air pollutant |
A. N2
B. CO
C. NO
D. N2O
|
| 3 | Which is not considered as pollutant |
A. O3
B. CO2
C. NO2
D. SO2
|
| 4 | Heat balance of earth is maintained by |
A. Atmosphere
B. Hydrosphere
C. Lithosphere
D. Stratosphere
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| 5 | Contamination of water of tanning industries is due to: |
A. Cr(III)
B. Cr(VI)
C. Mn(III)
D. Mn(VII)
|
| 6 | The most important pesticides are: |
A. Herbicides
B. Insecticides
C. Fungicides
D. All
|
| 7 | The semi solid wastes in landfills is called: |
A. Landfill
B. effluents
C. Leachate
D. Incineration
|
| 8 | Contamination of Hg comes into surface water from chlor industrial wastes. Why is Hg Toxic. |
A. It attaches to sulphur of the disulphide link
B. Hg is a heavy metal
C. Hg is liquid at room temperature
D. Hg is non reactive chemically
|
| 9 | Hydrosphere includes |
A. Seas and rivers
B. Ocean & polar ice caps
C. Ground water
D. All of above
|
| 10 | Which of the following substance is not present in acid rain? |
A. Sulphuric acid
B. Nitric acid
C. Sulphurous acid
D. Acetic acid
|
Test Questions