Home
News
Colleges
Courses
Admission
Lectures
Online Test
Past Papers
Date Sheets
Results
Study Abroad
Jobs
Tutors
More
Apps
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
-
Total Questions20
-
Time Allowed20
MDCAT Chemistry Chapter 21 Environmental Chemistry Online Test
00:00
Question # 1
Region of earth capable of supporting life is called:
Question # 2
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 # 3
Which one of the following is used as coagulant for purification potable water
Question # 4
Lead pollution is mainly due to
Question # 5
Chlorofluorocarbon, CF2Cl2, plays an effective role in removing O3(ozone) in the stratosphere. Which reaction does not cause the depletion of ozone
Question # 6
In big/metropolitan cities, atmosphere is mostly polluted due to
Question # 7
Which of the following air pollutant is called quiet killer
Question # 8
Which one of the following is an organic compound?
Question # 9
Why is carbon monoxide called as pollutant? The reason is that
Question # 10
Peroxyacetylnitrate (PAN) is an irritant to human beings and it affects:
Question # 11
The temperature in the incineration process has a range:
Question # 12
It is a biodegradable pollutant
Question # 13
Test of incomplete combustion of petrol in the presence of
Question # 14
In incinerating the waste is burnt at
Question # 15
HOCl is a compound:
Question # 16
Density of water becomes maximum at
Question # 17
Most harmful of biosphere is
Question # 18
Fungicides are the pesticides which
Question # 19
Temporary hardness can be removed by adding
Question # 20
For incineration temperature range is (in oC)
Prepare Complete Set Wise MDCAT Chemistry Chapter 21 Environmental Chemistry Online Test MCQs Online With Answers
-
Set 1
20 Questions
Start -
Set 2
20 Questions
Start -
Set 3
20 Questions
Start -
Set 4
20 Questions
Start -
Set 5
20 Questions
Start -
Set 6
20 Questions
Start -
Set 7
20 Questions
Start -
Set 8
20 Questions
Start -
Set 9
20 Questions
Start -
Set 10
20 Questions
Start -
Set 11
20 Questions
Start -
Set 12
20 Questions
Start -
Set 13
20 Questions
Start -
Set 14
20 Questions
Start -
Set 15
20 Questions
Start -
Set 16
20 Questions
Start -
Set 17
3 Questions
Start
Top Scorers Of MDCAT Chemistry Chapter 21 Environmental Chemistry Online Test MCQ`s Test
-
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 | Region of earth capable of supporting life is called: |
A. Atmosphere
B. Hydrosphere
C. Lithosphere
D. All of these
|
| 2 | Ozone is an allotropic form of: |
A. Carbon
B. Phosphorus
C. Oxygen
D. Sulfur
|
| 3 | Lithosphere extends upto kilometer of earth crust in depth: |
A. 10 km
B. 100 km
C. 1000 km
D. 10000 km
|
| 4 | 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
|
| 5 | The ozone depletion in the stratophere is mainly due to the reaction of ozone with |
A. Freons
B. CFCs
C. Both A and B
D. None
|
| 6 | Ozone is produced in regions: |
A. tropical
B. Polor
C. antaric
D. equator
|
| 7 | Which is unnecessary for purification of water for drinking purposes |
A. Coagulation
B. Aeration
C. Treatment with Iodine
D. Treatment with chlorine
|
| 8 | The main pollutant of leather in the waste water is due to the salt of: |
A. Lead
B. Chromium (VI)
C. Copper
D. Chromium (III)
|
| 9 | SO2 produced by volcanoes is about |
A. 75%
B. 67%
C. 69%
D. 70%
|
| 10 | Which is the most toxic among the given? |
A. heavy metals
B. non-metals
C. Metals
D. Metalloids
|
Test Questions