Home
News
Colleges
Courses
Admission
Lectures
Online Test
Past Papers
Date Sheets
Results
Study Abroad
Jobs
Tutors
More
Apps
.jpg)
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
The scope of environmental chemistry is to study:
Question # 2
The most important pesticides are:
Question # 3
Fresh water of total earth water is:
Question # 4
Heat balance of earth is maintained by sphere:
Question # 5
Solid waster of the city is disposed off by dumping in a landfill. Which of the following gas is produced in the landfill
Question # 6
The pH of the rain water in areas where acid rain is the cause of pollution may be
Question # 7
HOCl is a compound:
Question # 8
Which gas is not a constituent of atmosphere?
Question # 9
The % of CO2in the atmosphere is
Question # 10
99.5% mass of lithosphere is made of
Question # 11
Ozone is produced in regions:
Question # 12
The temperature in the incineration process has a range:
Question # 13
Property due to which water acts as a universal solvent is
Question # 14
By the mid of 1980s depletion of total overhead ozone in antarctic region is
Question # 15
The percentage of SO2 produced by volcanoes is:
Question # 16
Electropositive character increases down the groups due to:
Question # 17
The suspended particles in the raw water can be removed by the
Question # 18
In the atmosphere, O2is about
Question # 19
The pH range of the acid rain is
Question # 20
Agriculture consumes part of fresh water:
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 | The process of coagulation can remove suspended solids in raw water about |
A. 50%
B. 60%
C. Less than 40%
D. More than 80%
|
| 2 | The yellow color present in the photo chemical smog is due to presence of the |
A. Carbon dioxide
B. Nitrogen dioxide
C. Chlorine
D. All
|
| 3 | Which one of the pollutants of automobile exhausts affects the nervous system or produces mental diseases |
A. NO2
B. SO2
C. Hg
D. Pb
|
| 4 | The morality of the solution containing x grams ammonium sulfate in 500cm3 of the solution is 0.6 what is x? |
A. 39.6
B. 40.5
C. 42.7
D. 45.1
|
| 5 | Atmosphere consists of gasses: |
A. N2
B. O2
C. Ar
D. All
|
| 6 | Coagulation in the purification of water is carried out by |
A. Alum
B. NiSO4
C. BaSO4
D. CuSO4
|
| 7 | An excellent source of energy without causing pollution is |
A. Fossil fuel
B. Sun
C. Petroleum
D. Nuclear reactor
|
| 8 | Elevated concentration of ______________ is harmful for fish as it clog the gills causing suffocation |
A. AI
B. Hg
C. As
D. Cr(vi)
|
| 9 | Water is essential for life on |
A. Moon
B. Space
C. Earth
D. Sun
|
| 10 | Term ozone hole is used for depletion of ozone during months of: |
A. Jan-Feb
B. March - Sep
C. Sep- Nov
D. Dec-Feb
|
Test Questions