MDCAT Chemistry Chapter 21 online mcq test with answers for chapter 21 (Environmental Chemistry)

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.

Top Scorers Of MDCAT Chemistry Chapter 21 Environmental Chemistry Online Test MCQ`s Test

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tahreem fatima 12 - Nov - 2022 00 Min 04 Sec 15/20
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Faiz Barvi443 19 - Mar - 2023 03 Min 29 Sec 14/20
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Ali Ahmed Tauqeer 03 - Mar - 2024 03 Min 27 Sec 13/20
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Meer Sadeed 07 - Sep - 2023 10 Min 50 Sec 13/20
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Rana Ubaid Chohan 16 - Jul - 2022 10 Min 50 Sec 13/20

MCAT Chemistry Chapter 21 Important MCQ's

Sr.#	Question	Answer
1	Which one of the following does not act as pollutant	A. Carbon monoxide B. Sulphur dioxide C. Hydrocarbons D. Carbon dioxide
2	Ozone gas has boiling point:	A. Low B. High C. Medium D. Highest
3	Organic pollutants in water are measured by	A. DO B. COD C. Water logging D. PH
4	Water cover earth surface more than:	A. 50% B. 60% C. 70% D. 80%
5	Coal contains percentage of sulphur:	A. 1-9% B. 5-9% C. 6-9% D. 7-9%
6	Which of the following waster material is not recycled for use again	A. paper B. plastic C. hides of animals D. glass
7	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
8	A single chlorine free radical can destroy how many ozone molecules	A. 100 B. 100000 C. 10000 D. 10
9	Transportation causes to produce CO₂ in atmosphere:	A. 72% B. 73% C. 74% D. 75%
10	The respiration process taking place in animals depends on a difference in	A. Partial pressure B. Osomotic pressure C. Vapour pressure D. Atomospheric pressure

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MDCAT Chemistry Chapter 21 MCQ Test With Answer for (Environmental Chemistry)

MCQ's Test For MDCAT Chemistry Chapter 21 Environmental Chemistry Online Test

MDCAT Chemistry Chapter 21 Environmental Chemistry Online Test

BOD is the oxygen demand with in day(s):

Chemistry related to the study of environment affected by the chemicals and pollutants is called:

Acidification of soil can leach metal:

Polycyclic aromatic hydrocarbons are taught to be

Major cause of SO2 on global scale is

What is the morality of a solution containing 15g of urea is 500cm3 of solution?

Which of the following is not a heavy industry?

White marble buildings are effected by?

Why is carbon monoxide called as pollutant? The reason is that

In addition to many pollutants present in ground water, a successful study was conducted to remove a highly Toxic chemical.What chemical is this

The normal amount of overhead ozone is

Term ozone hole is used for depletion of ozone during months of:

The pH range of acid rain is?

Chlorofluorocarbon, CF2Cl2, plays an effective role in removing O3(ozone) in the stratosphere. Which reaction does not cause the depletion of ozone

Which one of the following is used as coagulant for purification potable water

Acid rain is caused when various atmospheric gases dissolve in rain water. What are the gases that cause rain water

The eleventh concentration of metal cause clogs of gills in fish:

Lead pollution is mainly due to

Solid waster of the city is disposed off by dumping in a landfill. Which of the following gas is produced in the landfill

Newspaper can be recycled again and again by how many times?

Prepare Complete Set Wise MDCAT Chemistry Chapter 21 Environmental Chemistry Online Test MCQs Online With Answers

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Set 12

Set 13

Set 14

Set 15

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Set 17

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Top Scorers Of MDCAT Chemistry Chapter 21 Environmental Chemistry Online Test MCQ`s Test

MCAT Chemistry Chapter 21 Important MCQ's

Test Questions

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What is the morality of a solution containing 15g of urea is 500cm³ of solution?

Chlorofluorocarbon, CF₂Cl₂, plays an effective role in removing O₃(ozone) in the stratosphere. Which reaction does not cause the depletion of ozone