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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tahreem fatima 12 - Nov - 2022 00 Min 04 Sec 15/20
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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	Ozone is effectively removed by	A. TNT B. CFCs C. PVC D. CNG
2	Boron, aluminium, gallium, indium and thallium belong to group lll-A of the periodic table show a decrease with increasing relative atomic mass:	A. Ionic character of the compounds B. The first ionization energy C. The basic character of the oxides D. The stability of +2 oxidation
3	The region of earth capable of supporting life is	A. Hydrosphere B. Lithosphere C. Biosphere D. Atmosphere
4	Heat balance of earth is maintained by	A. Atmosphere B. Hydrosphere C. Lithosphere D. Stratosphere
5	How much quantity of total water is available as fresh water	A. 3% B. 1% C. 10% D. 21%
6	The amount of Si in the lithosphere is about	A. 27.72% B. 30.35% C. 35.30% D. 40.21%
7	It is a biodegradable pollutant	A. Salts of HG B. DDt C. Aluminum foil D. Domestic fuel
8	Which one of the following is not air pollutant gas	A. CO B. CO₂ C. NO D. SO₂
9	Amount of ozone in atmosphere is expressed in units:	A. Kilograms B. cm C. molarity D. DU
10	Which is not an air pollutant	A. N₂ B. CO C. NO D. N₂O

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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

Polycyclic aromatic hydrocarbons are taught to be

Heat balance of earth is maintained by

What is the morality of a solution containing 15g of urea is 500cm3 of solution?

Biological oxygen demand (BOD) is associated with

The yellow color present in the photo chemical smog is due to presence of the

Depletion of ozone is more during the month:

The toxic organic compounds and heavy metals and metalloids results in contamination of

Eleven elements made part of earth mass:

Organic pollutants in water are measured by

Major cause of SO2 on global scale is

A single free chlorine redical can destroy ozone molecules upto:

In addition to many pollutants present in ground water, a successful study was conducted to remove a highly Toxic chemical.What chemical is this

The reason of acid rains is

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

The incineration may reduce volume of wastes upto:

Fungicides are the pesticides which:

Ozone is usually produced in the

Chloroform is carcinogenic:

CFCs are mainly used in industries due to

The Catalyst used in the contact tower for the manufacture of H2SO4 is easily poisoned by:

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

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Set 7

Set 8

Set 9

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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What is the morality of a solution containing 15g of urea is 500cm³ of solution?

The Catalyst used in the contact tower for the manufacture of H₂SO₄ is easily poisoned by: