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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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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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	How many times a newspaper can be recycled	A. 02 B. 05 C. 08 D. 10
2	DDT is a:	A. Fungicide B. Insecticide C. Herbicide D. All
3	The normal amount of overhead ozone is about in DU:	A. 150 B. 250 C. 350 D. 450
4	Which is not the condition for the formation of smog	A. there must be sufficient NO gas B. there must be sunlight to help photo chemical reactions to take place C. air must be blowing swifty D. there must be SO₂in the air
5	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
6	The bonding occurs among polar covalent molecules containing H and one of the small electronegative element such as O,F or N is called:	A. Ionic bonding B. Metallic bonding C. Bridge bonding D. H-bonding
7	A large hole in the ozone layer over antarctica region was discovered in:	A. 1960s B. 1970s C. 1980s D. 1990s
8	Fresh water of total earth water is:	A. 1% B. 2% C. 3% D. 4%
9	Nitrogen percentage in atmosphere is:	A. 76% B. 77% C. 78% D. 79%
10	The temperature in the incineration of industrial and hazardons waster process had a range	A. 950 to 1300°C B. 500 to 900°C C. 250 to 500°C D. 900 to 1000°C

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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

Amount of fresh water used by agriculture is

When chlorofluoro carbon are subjected to U.V they form

Coal contains sulphur in it:

Water exist in only

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

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

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

Hardness which can be removed by boiling is called

Leachate contains:

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

Pan is an irritant to human beings and it affects

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

Ozone is a gas having boiling point

Splitting of spectral lines when atoms are subjected to strong electric field is called:

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

Which of the following is not a secondary pollutant

Unit of ozone is?

Coal contains percentage of sulphur:

SO2 produced by volcanoes is about

Newspapers 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 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

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SO₂produced by volcanoes is about