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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MCAT Chemistry Chapter 21 Important MCQ's

Sr.#	Question	Answer
1	CFCs destroy ozone layer. How many ozone molecule a chlorine free radical can destory	A. 50,000 B. 10,000 C. 20,000 D. None of these
2	Hardness which can be removed by boiling is called	A. Permanent hardness B. Temporary hardness C. Stiffness D. Toughness
3	Troposphere extends upto km:	A. 0-15 km B. 10-15 km C. 15-40 km D. 15-40 km
4	What is component of environment?	A. Atmosphere B. Hydrosphere C. Lithosphere D. All of these
5	Which factor is helping to reduce the environmental pollution	A. Urbanization B. Industrialization C. Increase of plantation D. Rapid growth of population
6	A single free chlorine redical can destroy ozone molecules upto:	A. 100000 B. 100 C. 1000 D. 10000
7	Chemicals used to kill insects are:	A. Herbicides B. Insecticides C. Pesticides D. Fungicides
8	Contamination of water of tanning industries is due to:	A. Cr(III) B. Cr(VI) C. Mn(III) D. Mn(VII)
9	During thunderstorms, water dissolves	A. Dust particles B. HCl C. Nitric acid D. Clouds
10	Ozone is effectively removed by	A. TNT B. CFCs C. PVC D. CNG

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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

Which one of the following is an organic compound?

The amount of oxygen in the lithosphere is about

Contamination of water of tanning industries is due to:

Which heavy metals do not have any safe limits

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

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

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

It is a biodegradable pollutant

How can heavy metal contamination like the presence of Hg or Pb may be removed from the soil

The words smog is a combination of smoke and:

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

Fresh water of total earth water is:

Cyclone collector is used to reduce

The normal amount of overhead ozone is about in DU:

Unit of ozone is?

SO2makes ___________ acid rains

By the mid of 1980s depletion of total overhead ozone in antarctic region is

Test of incomplete combustion of petrol in the presence of

Ecology is a science of environment and deals specially with

Which one of the pollutants of automobile exhausts affects the nervous system or produces mental diseases

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

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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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SO₂makes ___________ acid rains