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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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 Catalyst used in the contact tower for the manufacture of H₂SO₄ is easily poisoned by:	A. Nitrous oxide B. Nitrogen gas C. Arsenic oxide D. Carbon dioxide
2	Lithosphere extends upto kilometer of earth crust in depth:	A. 10 km B. 100 km C. 1000 km D. 10000 km
3	The overall effect of the photochemical smog in the after noon is built up of	A. Neutralization B. oxidizing agent C. Reducing agent D. Activating agent
4	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
5	In the atosphere, CO₂is about	A. 0.01% B. 0.03% C. 0.05% D. 0.09%
6	It is a biodegradable pollutant	A. Salts of HG B. DDt C. Aluminum foil D. Domestic fuel
7	The force which hold the atoms together to form a compound is called:	A. Dispersion forces B. London forces C. A chemical bond D. Ven der wall's forces
8	Dissolved impurities of potable water can be separated by the process of	A. reduction B. Aeration C. Electrolysis D. Co-angulation
9	Which is property of CO?	A. Soluble in water B. Insoluble in water C. No toxic D. Pole coloured
10	The normal amount of overhead ozone is about	A. 250 Du B. 300 DU C. 350 DU D. 400 DU

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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

Dissolved impurities of potable water can be separated by the process of

Acidification of soil can leach metal:

Smaller unit of biosphere is:

Coagulation in the purification of water is carried out by

Phenomenon of acid rains gain importance in:

Heat balance of earth is maintained by sphere:

Ozone is most of the tropical regions acts as a pollutant and causes

During thunderstorms, water dissolves

The process of coagulation can remove suspended solids in raw water about

Electropositive character increases down the groups due to:

COD of water can be measured by

The force which hold the atoms together to form a compound is called:

The water is considered to be polluted when the concentration of oxygen in it is

Components of environment is (in km) around the earth:

Nitrogen in the atmosphere is:

Choose the chief air pollutant among the following which depletes ozone layer

Leaching of nutrients is due to

It is a biodegradable pollutant

Biochemical oxygen demand is the capacity of organic matter in natural water to consume oxygen

Which is the most toxic among the given?

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

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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

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