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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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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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	What is the effect of polluted air on environment	A. Ozone B. Acid rain C. Global warming D. Smog
2	Transportation causes to produce CO₂ in atmosphere:	A. 72% B. 73% C. 74% D. 75%
3	Ozone is an allotropic form of:	A. Carbon B. Phosphorus C. Oxygen D. Sulfur
4	Most harmful of biosphere is	A. Deforestation B. Nuclear fail out C. Salinity D. Water logging
5	Chlorofluorocarbons and aerosols are inert in sphere:	A. troposphere B. stratosphere C. lithosphere D. hydrosphere
6	The suspended particles in the raw water can be removed by the	A. Coagulation B. Aeration C. Hydration D. Dehydration
7	Which heavy metals do not have any safe limits	A. As B. Hg C. Cr D. All of these
8	Exposure to CO results in	A. Headche B. Fatigue C. Unconsciousness D. All of these
9	Fungicides are the pesticides which:	A. Control the growth of fungus B. Kills insects C. Kills plants D. Kill herb
10	BOD is the oxygen demand with in day(s):	A. Four B. Two C. Three D. Five

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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

Why a C- C bond breaks by uv light

The layer of earth around the earth is called:

Which step is unnecessary for purification of water for drinking purposes

Transportation causes to produce CO2 in atmosphere:

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

Organic pollutants in water are measured by

BOD is the oxygen demand with in day(s):

Which of the following is not the required condition for the formation of smog

Agriculture consumes part of fresh water:

Reason of pollution are:

Ozone acts as:

Temporary hardness can be removed by adding

Unit of ozone is?

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

A chemist says that glass must be a super cooled liquid. the reason that he might have in his mind is that glass has:

SO2makes ___________ acid rains

The morality of the solution containing x grams ammonium sulfate in 500cm3 of the solution is 0.6 what is x?

In incinerating the waste is burnt at

The amount of Si in the lithosphere is about

Why a C - Cl bond breaks by uv light

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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Transportation causes to produce CO₂ in atmosphere:

SO₂makes ___________ acid rains