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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 of the following factors is not used to determine the quality of water
Question # 2
SO2makes ___________ acid rains
Question # 3
Which not a method for solid waste management>
Question # 4
Insoluble ferric oxide is produced in the pH range:
Question # 5
Transportation causes to produce CO2 in atmosphere:
Question # 6
Ph of unpolluted rain water is
Question # 7
Proxy acetyl nitrate (PAN) is an irritant to human beings and it affect
Question # 8
a hole used to dump the municipal wastes is called:
Question # 9
The normal amount of overhead ozone is about
Question # 10
Property due to which water acts as a universal solvent is
Question # 11
Density of water becomes maximum at
Question # 12
Which of the following air pollutant is called quiet killer
Question # 13
When chlorofluoro carbon are subjected to U.V they form
Question # 14
Which one of the following does not act as pollutant
Question # 15
Test of incomplete combustion of petrol in the presence of
Question # 16
Water in swimming pools is purified by adding
Question # 17
Ozone in stratosphere extends upto km:
Question # 18
A single free chlorine redical can destroy ozone molecules upto:
Question # 19
Poisoning of CO can be reveresed by giving oxygen at pressure:
Question # 20
Ground and surface waters are contaminated and become polluted due to the human activity. Which human activity will not cause 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
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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 -
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A Amat Nur 27 - Jun - 2023 07 Min 07 Sec 14/20 -
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MCAT Chemistry Chapter 21 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | Why a C- C bond breaks by uv light |
A. Cl is most electronegative
B. Cl is volatile
C. C - Cl bond energy is smaller than that of C - H bond energy
D. uv light provides energy which is sufficient to break C - Cl bond and not C - H bond
|
| 2 | Choose the correct statements |
A. SO2affects the nucleus
B. SO2affects plasmodesmata
C. SO2affects cell wall
D. SO2affects all membrane systems
|
| 3 | Chromium (VI) is highly toxic and can cause |
A. Blindness
B. Cancer
C. Liver problems
D. Blood problems
|
| 4 | Ozone is most of the tropical regions acts as a pollutant and causes |
A. Damages to eyes
B. Aggravates asthma
C. Chest discomfort
D. All of these
|
| 5 | Which gas is not a constituent of atmosphere? |
A. Xe
B. O3
C. H2
D. F2
|
| 6 | Ozone in most of the tropical regions acts as a pollutant and cause |
A. damages to eyes
B. aggravates asthma
C. chest discomfort
D. all of these
|
| 7 | The range of UV-B is: |
A. 320 to 400 nm
B. 200 to 280 nm
C. 280 to 320 nm
D. 50 to 400 nm
|
| 8 | Rigid rocky crust earth upto a depth of 100 km is called: |
A. Atmosphere
B. Hydrosphere
C. Lithosphere
D. All of these
|
| 9 | Which one of the following is used as coagulant for purification potable water |
A. Copper sulphate
B. Alum
C. Barium sulphate
D. Nickel sulphate
|
| 10 | Ecosystem is a smaller unity of |
A. Nydosphere
B. Biosphere
C. Lithosphere
D. Attmosphere
|
Test Questions