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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Laiba Khan 24 - Jul - 2022 02 Min 18 Sec 16/20
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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
B

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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Abdullah 11 - Apr - 2023 10 Min 50 Sec 14/20
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Dania 01 - Jan - 2023 14 Min 03 Sec 14/20
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Ali Ahmed Tauqeer 03 - Mar - 2024 03 Min 27 Sec 13/20
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Anaya 07 - Jul - 2023 04 Min 28 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	Heat balance of earth is maintained by sphere:	A. Hydrosphere B. atmosphers C. lithosphere D. biosphere
2	Requirement of macronutrient per acre of the land is	A. 5 to 200 kg B. 20-200 kg C. 200-400 kg D. 30-400 kg
3	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
4	BOD is the oxygen demand with in day(s):	A. Four B. Two C. Three D. Five
5	Fresh water of total earth water is:	A. 1% B. 2% C. 3% D. 4%
6	Which not a method for solid waste management>	A. Landfill B. Incinerating C. Recycling D. None of these
7	A single chloride free radical can destroy the ozone molecules	A. 100 B. 100000 C. 10000 D. 10
8	Solid waster of the city is disposed off by dumping in a landfill. Which of the following gas is produced in the landfill	A. Oxygen B. Chlorine C. Hydrogen sulphide D. Hydrogen chloride gas
9	a hole used to dump the municipal wastes is called:	A. landfill B. effluents C. leachate D. inclneration
10	Chemicals used to kill fungi are:	A. Herbicides B. Insecticides C. Pesticides D. fungicides

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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

In water the most important oxidizing agent is dissolved molecular oxygen which ranges form

What is the cause of water pollution

Chemical equilibrium involving reactants and products in more than one phase is called:

The pH range of the acid rain is

Synthetic organic pesticides formulated nowadays are more then:

Oceans, rivers, streams, leaks, polar ice caps, glaciers and group water reservoirs are included in

Ozone is present in layer around earth:

Hydrocarbons, SO2, CO, NH3nitrogen oxides and compounds of fluorine are called

Boron, aluminium, gallium, indium and thallium belong to group lll-A of the periodic table show a decrease with increasing relative atomic mass:

How much pesticides have been synthesized at present?

Why a C- C bond breaks by uv light

Oxides of sulphur react in atmosphere by various reactions to form:

Ozone in most of the tropical regions acts as a pollutant and cause

Which one of the following is an organic compound?

alum or aluminium sulphate used as coagulant in alkaline medium change into precipitate of radicals of alumimium.

Ecology is a science of environment and deals specially with

SO2 produced by volcanoes is about

Ground and surface waters are contaminated and become polluted due to the human activity. Which human activity will not cause water pollution

Electropositive character increases down the groups due to:

Which is not the condition for the formation of smog

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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Hydrocarbons, SO₂, CO, NH₃nitrogen oxides and compounds of fluorine are called

SO₂produced by volcanoes is about