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

Which of the following is not a secondary pollutant

A. Ozone

B. Carbonic acid

C. Sulphuric acid

D. Carbon dioxide

Water bodies are included in:

A. Atmosphere

B. Hydrosphere

C. Lithosphere

D. All of these

Which of the following is not the required condition for the formation of smog

A. Sufficient NO

B. Sunlight

C. Less movement of air

D. Winds

Which gas produces air pollution?

A. oxides of sulphur

B. oxides of carbon

C. all of these

Water which forms scum with soap is called

A. Hard water

B. Soft water

C. Distilled water

D. Un distilled water

Polar ice caps can melt due to

A. Acid rain

B. Green House Effect

C. Smog

D. Chlorofluorocarbons

Which gas is not a constituent of atmosphere?

A. Xe

B. O₃

C. H₂

D. F₂

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

A. AI

B. Hg

C. As

D. Cr(vi)

Ecology is a science of environment and deals specially with

A. stratosphere

B. biosphere

C. lithosphere

D. hydrosphere

The pH range of the acid rain is

A. 7 - 6.5

B. 6.5 - 6

C. 6 - 5.6

D. Less than 5

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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

Contamination of Hg comes into surface water from chlor industrial wastes. Why is Hg Toxic.

Coagulation in the purification of water is carried out by

SO2makes ___________ acid rains

Which one of the following is an organic compound?

In big/metropolitan cities, atmosphere is mostly polluted due to

Polar ice caps can melt due to

The respiration process taking place in animals depends on a difference in

The pH range of the acid rain is

Nitrogen percentage in atmosphere is:

Ozone is usually produced in the

Reason of pollution are:

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

Water is made disinfectant during purification of water to the step:

99.5% mass of lithosphere is made of

In the atmosphere, O2is about

Ozone is most of the tropical regions acts as a pollutant and causes

Which is not the affect of polluted air on environment

HOCl is a compound:

Exposure to CO results in

Chemical equilibrium involving reactants and products in more than one phase is called:

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

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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

In the atmosphere, O₂is about