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
1	Chromium (VI) is highly toxic and can cause	A. Blindness B. Cancer C. Liver problems D. Blood problems
2	Which is used as a coagulant:	A. Ferric salts B. Potash alum C. a and b both D. Chlorine
3	Fungicides are the pesticides which	A. Kill plants B. Kill herbs C. Kill insects D. Control the growth of fungus
4	Coagulation removes suspended particles in ran water:	A. 60% B. 70% C. 80% D. 90%
5	Ozone in most of the tropical regions acts as a pollutant and cause	A. damages to eyes B. aggravates asthma C. chest discomfort D. all of these
6	Which one of the pollutants of automobile exhausts affects the nervous system or produces mental diseases	A. NO₂ B. SO₂ C. Hg D. Pb
7	Potable water is considered to be	A. Safe for human consumption B. The ground water C. The surface water D. Now safe for human consumption
8	Men residence time of methane in atmosphere in years is:	A. 1-7 B. 2-7 C. 3-7 D. 4-7
9	Part of fresh water consumed in domestic purpose:	A. 1% B. 2% C. 69% D. 8%
10	Water which his considered to be safe for human consumption is known as	A. distilled water B. contaminated water C. potable water D. rain water

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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

The temperature in the incineration process has a range:

Transformation is a cyclic process in which used plactic is

Chemistry related to the study of environment affected by the chemicals and pollutants is called:

NO and NO2gases in atmosphere are represented by

Chlorofluorocarbon, CF2Cl2, plays an effective role in removing O3(ozone) in the stratosphere. Which reaction does not cause the depletion of ozone

As the number of carbon atoms increase the number of isomers also increase. The six carbon compound hexane has as many as:

Which not a method for solid waste management>

What change in plants indicates toxic effect of SO2

Detergents are surfactants and they reduce the

Which step is unnecessary for purification of water for drinking purposes

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

Half of the mass of atmosphere is concentrated above earth at the hieght of

What is the cause of water pollution

Hardness which can be removed by boiling is called

Solid waster of the city is disposed off by dumping in a landfill. Which of the following gas is produced in the landfill

Nitrogen percentage in atmosphere is:

Choose the correct statements

Coal contains sulphur in it:

Part of fresh water consumed in domestic purpose:

Fungicides are the pesticides which

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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

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NO and NO₂gases in atmosphere are represented by

Chlorofluorocarbon, CF₂Cl₂, plays an effective role in removing O₃(ozone) in the stratosphere. Which reaction does not cause the depletion of ozone

What change in plants indicates toxic effect of SO₂