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	Transformation is a cyclic process in which used plactic is	A. Remelted and styrene is added B. Converted into low quality substance C. Converted back into original components D. None of these
2	A single chloride free radical can destroy the ozone molecules	A. 100 B. 100000 C. 10000 D. 10
3	Ozone is a gas having boiling point	A. Unstable B. High C. Low D. Moderate
4	Oceans, rivers, streams, leaks, polar ice caps, glaciers and group water reservoirs are included in	A. Atmosphere B. Lithosphere C. Hydrosphere D. Biosphere
5	White marble buildings are effected by?	A. O₂ B. SO₂ C. CI₂ D. CFC_s
6	Detergents are surfactants and they reduce the	A. B.P. of water B. Surface tension of water C. Wetting ability of water D. None of these
7	Surface and ground water sources are contaminated by various human activities. Which of the following is not human activity that causes contamination in fresh water	A. Live stock waste B. Oil leaks and spills C. Desposal of industrial effluents D. Rain
8	Polar ice caps and glaciers consists total earth water:	A. 1% B. 2% C. 3% D. 4%
9	The normal amount of overhead ozone is	A. 350 DU B. 450 DU C. 400 DU D. 300 DU
10	One of the environmental problem is the formation of oil slicks when oil is spilled form tankers in sea water. Which treatment is suitable to remove oil slicks	A. Blow air B. Add Na₂CO₃ C. Use a specially made sorbent having fluorine trapped in it D. Use a sorbent having Al₂O₃trapped in it

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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

Choose the chief air pollutant among the following which depletes ozone layer

Which one of the following is not air pollutant gas

Ozone is most of the tropical regions acts as a pollutant and causes

Part of fresh water consumed in industry is:

COD of water can be measured by

Organic pollutants in water are measured by

How much pesticides have been synthesized at present?

The temperature in the incineration process has a range:

The pH rain of acid rain is

The largest item which is recycled is

DDT is a:

Ocean contains part earth's water:

Atmosphere consists of gasses:

Forms of waste products:

Addition of washing soda removes

Amount of fresh water used by agriculture is

It is a biodegradable pollutant

Natural water is

Ozone is a gas having boiling point

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

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

Set 1

Set 2

Set 3

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

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