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

How much quantity of total water is available as fresh water

A. 3%

B. 1%

C. 10%

D. 21%

Which heavy metals do not have any safe limits

A. As

B. Hg

C. Cr

D. All of these

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

Proxy acetyl nitrate (PAN) is an irritant to human beings and it affect

A. Nose

B. Stomach

C. Eyes

D. Ears

Which factor is helping to reduce the environmental pollution

A. Urbanization

B. Industrialization

C. Increase of plantation

D. Rapid growth of population

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

A. 6 - 9ppm

B. 6 ppm

C. 8 ppm

D. Less than 4pm

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

A. paper

B. plastic

C. hides of animals

D. glass

Pathogens in raw water are killed in step:

A. aeration

B. coagulation

C. chlorination

D. treatment

Which of the following is not a secondary pollutant

A. Ozone

B. Carbonic acid

C. Sulphuric acid

D. Carbon dioxide

Surface and ground water sources are contaminated by various human activities which of the followings is not a human activity that causes contamination in fresh water

A. live stock waste

B. oil leaks and spills

C. disposal of industrial effluents

D. rain

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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

Elements in lithosphere exist generally as:

Global warming is mainly caused by ______ radiations

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

Hydrosphere includes

The film forming components of paints are

The branch of chemistry interlinked with biology, physics, medicines, agriculture, public health and sanitary engineering etc. is:

Lead pollution is mainly due to

Insoluble ferric oxide is produced in the pH range:

The scope of environmental chemistry is to study:

Air pollution causes

Which of the following substance is not present in acid rain?

Water bodies are included in:

An excellent source of energy without causing pollution is

The incineration may reduce volume of wastes upto:

Fungicides are the pesticides which:

Chemicals used to kill fungi are:

What is component of environment?

Surface and ground water sources are contaminated by various human activities which of the followings is not a human activity that causes contamination in fresh water

COD of water can be measured by

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

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

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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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