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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Munaza 11 - Oct - 2022 00 Min 07 Sec 20/20
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Sania Abbas 25 - Jul - 2022 06 Min 13 Sec 16/20
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tahreem fatima 12 - Nov - 2022 00 Min 04 Sec 15/20
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Filza Ahsan 11 - Nov - 2022 01 Min 33 Sec 15/20
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Faiz Barvi443 19 - Mar - 2023 03 Min 29 Sec 14/20
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Amat Nur 27 - Jun - 2023 07 Min 07 Sec 14/20
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Dania 01 - Jan - 2023 14 Min 03 Sec 14/20
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Ali Ahmed Tauqeer 03 - Mar - 2024 03 Min 27 Sec 13/20
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Urooj Wajid 15 - Sep - 2022 06 Min 47 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	Nitrogen percentage in atmosphere is:	A. 76% B. 77% C. 78% D. 79%
2	The normal amount of overhead ozone is	A. 350 DU B. 450 DU C. 400 DU D. 300 DU
3	Increased awareness of environment issues has led chemist to develop products and processes that do not impact on the environment in terms of pollution or depletion of sources. To help chemist to achieve this aim, some principles are drawn, which one is not the guiding principle	A. avoid waste production B. use no solvent C. use a catalyst D. devise a multistep procedure for synthesis of new compounds
4	The eleventh concentration of metal cause clogs of gills in fish:	A. Al B. He C. Pb D. Ca
5	One of the environment problem is the formation of oil slicks when oil is spilled from tankers in sea water. Which treatment is suitable to remove oil slicks	A. blow air B. add Na₂CO₃ C. use a specially made sorbent having fluorine trapped in it D. Use a sorbent having Al₂O₃trapped in it
6	The incineration may reduce volume of wastes upto:	A. 1/4th B. 1/2nd C. 2/3rd D. 3/4th
7	The normal amount of overhead ozone is	A. 350 DU B. 450 DU C. 400 DU D. 300 DU
8	Ozone is usually produced in the	A. South polar region B. North pole region C. Tropical region D. Thermosphere zone
9	Coal contains sulphur in it:	A. 1-3% B. 1-6% C. 1-9% D. 1-12%
10	Diseases like dysentery, typhoid and hepatitis are caused by mixing of in water:	A. Live stock wastes B. Oil spilage C. detergents D. pesticides

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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

The branch of chemistry interlinked with biology, physics, medicines, agriculture, public health and sanitary engineering etc. is:

Exposure to CO results in

Hydrocarbons, SO2, CO, NH3nitrogen oxides and compounds of fluorine are called

The words smog is a combination of smoke and:

Which is not the condition for the formation of smog

Chloroform is carcinogenic:

Which gases are produced from landfills?

Which of the following does not contribute towards the formation of photochemical smog?

Coal contains percentage of sulphur:

Requirement of macronutrient per acre of the land is

Oceans, rivers, streams, leaks, polar ice caps, glaciers and group water reservoirs are included in

Which is not a component of environment?

Transformation is a cyclic process in which used plactic is

The reason of acid rains is

Why a C- C bond breaks by uv light

Hydrosphere includes

Chemicals used to kill herbs are:

Which of the following waste material is not recycled for use again

The temperature of in the incineration of industrial and hazardous waste process has range

Contamination of Hg comes into surface water from chlor industrial wastes. Why is Hg toxic

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

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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

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Hydrocarbons, SO₂, CO, NH₃nitrogen oxides and compounds of fluorine are called