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

Augus smith discovered in the mid of seventeenth century:

A. acid

B. Base

C. Acid rain

D. Fertilizer

Electropositive character increases down the groups due to:

A. Increase in atomic size of the elements

B. Decrease in ionization potential

C. Decreases in electromagnetically of the element

D. All the above

Which of the following is not a heavy industry?

A. Iron

B. Fertilize

C. Paper

D. None

Ocean contains part earth's water:

A. 95%

B. 96%

C. 97%

D. 98%

Exposure to CO results in

A. Headche

B. Fatigue

C. Unconsciousness

D. All of these

A single chloride free radical of CFCs can destroy upto ozone molecules:

A. 10

B. 100

C. 1000

D. 100000

The largest item which is recycled is

A. newspaper

B. plastic

C. aluminium

D. oil

Which of spectral lines when atoms are subjected to strong electric field is called:

A. Compton effect

B. Stark effect

C. Zeeman effect

D. Photoelectric effect

What is component of environment?

A. Atmosphere

B. Hydrosphere

C. Lithosphere

D. All of these

Oceans cove ____________ percent of the surface of the earth

A. 60

B. 70

C. 80

D. 97

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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

Elevated concentration of ______________ is harmful for fish as it clog the gills causing suffocation

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

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

Agriculture consumes part of fresh water:

The ozone depletion in the stratophere is mainly due to the reaction of ozone with

Residence time of methane in the atmosphere is

Coal contains sulphur in it:

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 chemist says that glass must be a super cooled liquid. the reason that he might have in his mind is that glass has:

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

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

An excellent source of energy without causing pollution is

Coagulation in the purification of water is carried out by

Chemicals used to kill fungi are:

Transportation causes to produce CO2 in atmosphere:

0.1M HCI having pH =1.0 it is about 100 time stronger than acetic acid what will be the pH of acetic acid:

Amount of fresh water used by agriculture is

The overall effect of the photochemical smog in the after noon is built up of

Sea gets polluted bu accidental oil spills and

Reason of pollution are:

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

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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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Transportation causes to produce CO₂ in atmosphere: