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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Laiba Khan 24 - Jul - 2022 02 Min 18 Sec 16/20
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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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Basit Khan 09 - Aug - 2022 06 Min 44 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	The pH range of the acid rain is	A. 6.5 - 6 B. Less than 5 C. 8 - 7.5 D. 7 - 6.5
2	Eleven elements made part of earth mass:	A. 97.5% B. 98.5% C. 99.5% D. 100%
3	Commonly used coagulants are ions of:	A. Ferrous B. Al C. Cr D. Ferric
4	Heat balance of earth is maintained by	A. Atmosphere B. Hydrosphere C. Lithosphere D. Stratosphere
5	In water the most important oxidizing agent is dissolved molecular oxygen which ranges form	A. 2 - 4 ppm B. 4 - 6 ppm C. 2 - 5 ppm D. 4 - 8 ppm
6	Which is property of CO?	A. Soluble in water B. Insoluble in water C. No toxic D. Pole coloured
7	Suspended matter is settled in purification of water by:	A. aeration B. coagulation C. chlorination D. treatment
8	A chemist says that glass must be a super cooled liquid. the reason that he might have in his mind is that glass has:	A. Definite shape B. Definite volume C. Crystalline structure D. No crystalline structure
9	The temperature in the incineration process has a range:	A. 900 to 1000°C B. 650 to 1100°C C. 950 to 1300°C D. 500 to 900°C
10	Many petroleum products are:	A. coloured B. colourless C. testy D. poisoinous

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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

Contaminated soil can be cleaned by various methods. Which method is not used to clean the soil

To purify water which has mud dissolved in it, a substance which coagulates the suspended particles is used.The coagulant may be

Atmosphere consists of gasses:

The scope of environmental chemistry is to study:

Test of incomplete combustion of petrol in the presence of

Reason of pollution are:

The region of earth capable of supporting life is

Which gas produces air pollution?

Chloroform is carcinogenic:

CFCs destroy ozone layer. How many ozone molecule a chlorine free radical can destory

Any substance in the environment which adversely affects the human health and natural functioning of the Ecosystem is known as

In water the most important oxidizing agent is dissolved molecular oxygen which ranges form

The main pollutant of leather in the waste water is due to the salt of:

Elevated concentration of ______________ is harmful for fish as it clog the gills causing suffocation

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

Three elements needed for the healthy growth of plants are

Biological oxygen demand (BOD) is associated with

Requirement of macronutrient per acre of the land is

The words smog is a combination of smoke and:

The % of CO2in the atmosphere is

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

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Set 10

Set 11

Set 12

Set 13

Set 14

Set 15

Set 16

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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To purify water which has mud dissolved in it, a substance which coagulates the suspended particles is used.
The coagulant may be

The % of CO₂in the atmosphere is