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.

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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	Atmosphere consists of gasses:	A. N₂ B. O₂ C. Ar D. All
2	The amount of Si in the lithosphere is about	A. 27.72% B. 30.35% C. 35.30% D. 40.21%
3	The main pollutant of leather in the waste water is due to the salt of:	A. Lead B. Chromium (VI) C. Copper D. Chromium (III)
4	The normal amount of overhead ozone is about	A. 250 Du B. 300 DU C. 350 DU D. 400 DU
5	In big/metropolitan cities, atmosphere is mostly polluted due to	A. Radioactive fall out B. Household waste C. Pesticide residue D. Automobile exhausts
6	Sea gets polluted bu accidental oil spills and	A. Atmospheric pressure B. Nitrogen gas C. Cargo oil tankers D. Aero plane
7	How many times a newspaper can be recycled	A. 02 B. 05 C. 08 D. 10
8	Factors affecting quality of water:	A. D.O B. BOD C. COD D. a,b,c
9	Chlorofluorocarbons and aerosols are inert in sphere:	A. troposphere B. stratosphere C. lithosphere D. hydrosphere
10	In Purification of potable water the coagulant used is	A. nickel sulpahte B. copper sulpahte C. barium sulphate D. alum

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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

Which of the following factors is not used to determine the quality of water

Ozone is a gas having boiling point

Which is not a component of environment?

Main cause of reducing map is:

How much pesticides have been synthesized at present?

The pH range of the acid rain is

Photo chemical smog contains ______ as main reactants

The reason of acid rains is

The concentration of dissolved molecular oxygen in water which acts as the most important oxidizing agent ranges from

Commonly used coagulants are ions of:

Poisoning of CO can be reveresed by giving oxygen at pressure:

Addition of washing soda removes

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

Which is property of CO?

The normal amount of overhead ozone is about in DU:

Water which forms scum with soap is called

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

Lithosphere has amount of silicon

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

The disposal of domestic refuse, commercial and industrial solid wastes are studied under the title

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

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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