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

NO and NO₂gases in atmosphere are represented by

A. NO

B. NO₄

C. NO_x

D. N_xO_y

For incineration temperature range is (in ^oC)

A. 700-800

B. 800-900

C. 900-1000

D. 1000-1100

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

Ozone acts as:

A. Pollutant

B. saver

C. oxidatant

D. All of these

Region of earth capable of supporting life is called:

A. Atmosphere

B. Hydrosphere

C. Lithosphere

D. All of these

Contaminated soil can be cleaned by various methods. Which method is not used to clean the soil

A. diffusion

B. convection

C. electrophoresis

D. chromatography

Newspaper can be recycled again and again by how many times?

A. 2

B. 3

C. 4

D. 5

Natural water is

A. Pure

B. Impure

C. Acts as solute

D. Distilled

Lithosphere extends upto kilometer of earth crust in depth:

A. 10 km

B. 100 km

C. 1000 km

D. 10000 km

BOD means

A. Boron oxygen deuterium

B. Biochemical oxygen demand

C. Biochemical oxygen dissolved

D. Biochemical oxygen death

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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

White marble buildings are effected by?

Coal contains percentage of sulphur:

Exposure to CO results in

Ratio of hydrogen (H) and oxygen (O) in water molecule by volume is

Why a C - Cl bond breaks by uv light

The amount of oxygen in the lithosphere is about

Chemicals used to kill insects are:

BOD is the oxygen demand with in day(s):

In purification of potable water the coagulant used is:

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

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

Photo chemical smog contains ______ as main reactants

A single free chlorine redical can destroy ozone molecules upto:

Leaching of nutrients is due to

Newspapers can be recycled again and again by how many times

The amount of Si in the lithosphere is about

HOCl is a compound:

Which one of the following does not act as pollutant

Ozone layer is present in

The largest item which is recycled is

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

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Set 11

Set 12

Set 13

Set 14

Set 15

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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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