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

The layer of earth around the earth is called:

A. Atmosphere

B. Hydrosphere

C. Lithosphere

D. Biosphere

The eleventh concentration of metal cause clogs of gills in fish:

A. Al

B. He

C. Pb

D. Ca

Pan is an irritant to human beings and it affects

A. Eyes

B. Nose

C. Hair

D. Skin

Choose the correct statements

A. SO₂affects the nucleus

B. SO₂affects plasmodesmata

C. SO₂affects cell wall

D. SO₂affects all membrane systems

Nitrogen in the atmosphere is:

A. 78%

B. 21%

C. 0.9%

D. 0.03%

Polycyclic aromatic hydrocarbons are taught to be

A. Disinfectant

B. Carcinogenic

C. Helpful

D. Reactive

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

A. Glasses

B. Paper

C. Plastic toys

D. Hides of animals

The pH range of the acid rain is

A. 7 - 6.5

B. 6.5 - 6

C. 6 - 5.6

D. Less than 5

Eleven elements made part of earth mass:

A. 97.5%

B. 98.5%

C. 99.5%

D. 100%

Three elements needed for the healthy growth of plants are

A. N P K

B. N K C

C. N S P

D. N Ca P

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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

Primary pollutants are:

Which is not an air pollutant

Which is not considered as pollutant

Peroxyacetylnitrate (PAN) is an irritant to human beings and it affects:

Which factor is helping to reduce the environment pollution

Reason of pollution are:

The concentration of dissolved molecular oxygen in water which acts as the most important oxidizing agent ranges from

Soil remediation means

Smaller unit of biosphere is:

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

Atmosphere consists of gasses:

The main pollution of leather tanneries in the waste is due to the salt of

Which not a method for solid waste management>

Which is used as a coagulant:

Ocean contains part earth's water:

CFCs destroy ozone layer. How many ozone molecule a chlorine free radical can destroy

Lithosphere extends upto kilometer of earth crust in depth:

Rigid rocky crust earth upto a depth of 100 km is called:

Water is essential for life on

The scope of environmental chemistry is to study:

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

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Set 2

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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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