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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MCAT Chemistry Chapter 21 Important MCQ's

Sr.#	Question	Answer
1	During thunderstorms, water dissolves	A. Dust particles B. HCl C. Nitric acid D. Clouds
2	A pollutant affects	A. Human affects B. Quality of life C. Functioning of ecosystem D. All of these
3	Heat balance of earth is maintained by sphere:	A. Hydrosphere B. atmosphers C. lithosphere D. biosphere
4	Men residence time of methane in atmosphere in years is:	A. 1-7 B. 2-7 C. 3-7 D. 4-7
5	Chemicals used to kill fungi are:	A. Herbicides B. Insecticides C. Pesticides D. fungicides
6	Which of following is primary pollutants	A. N₂O B. PAN C. H₂SO₄ D. None of these
7	Which of the following substance is not present in acid rain?	A. Sulphuric acid B. Nitric acid C. Sulphurous acid D. Acetic acid
8	Which of the following waster material is not recycled for use again	A. paper B. plastic C. hides of animals D. glass
9	Why is carbon monoxide called as pollutant? The reason is that	A. It combines with oxygen B. It combines with haemoglobin C. It inactivates glycolysis D. It inactivates nerves
10	Which is property of CO?	A. Soluble in water B. Insoluble in water C. No toxic D. Pole coloured

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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

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

Coal contains percentage of sulphur:

Chose a point which is not included in the components of environment

Most harmful of biosphere is

Which of the following waster material is not recycled for use again

When chlorofluoro carbon are subjected to U.V they form

The % of CO2in the atmosphere is

The region of earth capable of supporting life is

Water is purified by the process:

NO and NO2gases in atmosphere are represented by

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

In the atmosphere, O2is about

Unit of ozone is?

Which one of the following is an organic compound?

The normal amount of overhead ozone is

Which of following is primary pollutants

As the number of carbon atoms increase the number of isomers also increase. The six carbon compound hexane has as many as:

What is the effect of polluted air on environment

Biochemical oxygen demand (BOD) is the capacity of organic matter in natural water to consume oxygen with in a period of

Sea gets polluted bu accidental oil spills and

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

Set 1

Set 2

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Set 4

Set 5

Set 6

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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The % of CO₂in the atmosphere is

NO and NO₂gases in atmosphere are represented by

In the atmosphere, O₂is about