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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 is a macronutrient?
Question # 2
A single chlorine free radical can destroy how many ozone molecules
Question # 3
SO2makes ___________ acid rains
Question # 4
Ozone in stratosphere extends upto km:
Question # 5
Augus smith discovered in the mid of seventeenth century:
Question # 6
Water is purified by:
Question # 7
Hydrocarbons, SO2, CO, NH3nitrogen oxides and compounds of fluorine are called
Question # 8
Which gas is not a constituent of atmosphere?
Question # 9
Carbon Monoxide is:
Question # 10
A single chloride free redical can destroy bow many ozene molecules?
Question # 11
The scope of environmental chemistry is to study:
Question # 12
Atmosphere consists of gasses:
Question # 13
Which is not the affect of polluted air on environment
Question # 14
Density of water becomes maximum at
Question # 15
A chemist says that glass must be a super cooled liquid. the reason that he might have in his mind is that glass has:
Question # 16
How many times a newspaper can be recycled
Question # 17
The respiration process taking place in animals depends on a difference in
Question # 18
A single free chlorine redical can destroy ozone molecules upto:
Question # 19
The ozone depletion in the stratophere is mainly due to the reaction of ozone with
Question # 20
The normal amount of overhead ozone is
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 -
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MCAT Chemistry Chapter 21 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | a hole used to dump the municipal wastes is called: |
A. landfill
B. effluents
C. leachate
D. inclneration
|
| 2 | Newspapers can be recycled again and again by how many times |
A. 5
B. 2
C. 4
D. 3
|
| 3 | The concentration of dissolved molecular oxygen in water which acts as the most important oxidizing agent ranges from |
A. 2 ppm - 6 ppm
B. 2 ppm - 4 ppm
C. 4 ppm - 8 ppm
D. 2 ppm - 3 ppm
|
| 4 | The normal amount of overhead ozone is |
A. 350 DU
B. 450 DU
C. 400 DU
D. 300 DU
|
| 5 | Petroleum or crude oil is a complex mixture of compounds mainly: |
A. benzene
B. minerals
C. hydrocarbons
D. phenols
|
| 6 | Which of the following air pollutant is called quiet killer |
A. PAN
B. CO
C. NO3
D. SO3
|
| 7 | Ph of unpolluted rain water is |
A. 07
B. Less than 6
C. 5.6
D. Less than 5
|
| 8 | What is component of environment? |
A. Atmosphere
B. Hydrosphere
C. Lithosphere
D. All of these
|
| 9 | Ozone gas has boiling point: |
A. Low
B. High
C. Medium
D. Highest
|
| 10 | Addition of washing soda removes |
A. Softness of water
B. Temporary hardness of water
C. Permanent hardness of water
D. Hydrogen from water
|
Test Questions