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.

Top Scorers Of MDCAT Chemistry Chapter 21 Environmental Chemistry Online Test MCQ`s Test

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Ali Ahmed Tauqeer 03 - Mar - 2024 03 Min 27 Sec 13/20
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Meer Sadeed 07 - Sep - 2023 10 Min 50 Sec 13/20
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Rana Ubaid Chohan 16 - Jul - 2022 10 Min 50 Sec 13/20

MCAT Chemistry Chapter 21 Important MCQ's

Sr.#	Question	Answer
1	The reason of acid rains is	A. Release of CO in excess by in complete combustion B. Excess release of NO₂and SO₂from buring of fossil fules C. Formation of excess CO₂due to combustion and respiration D. Formation of NH₃in excess from industry and coal gas
2	The pH range of acid rain is?	A. 7-6.5 B. 6.5-6 C. 6-5.6 D. Less than 5
3	Elements in lithosphere exist generally as:	A. metals B. non-metals C. metalloids D. minerals
4	Polar ice caps can melt due to	A. Acid rain B. Green House Effect C. Smog D. Chlorofluorocarbons
5	Primary pollutants are:	A. oxides of sulphur B. oxides of carbon C. oxides of nitrogen D. All of these
6	CFC's are known to cause depletion of ozone layer therefore their use has been banned in refrigerators and air conditioners. Which alternate compound may be suitable to replace CFC	A. CCl₄ B. CHCl₃ C. CH₃- CH₂- CH₂- CH₃ D. CHCl₂- CHF₂
7	In the atosphere, CO₂is about	A. 0.01% B. 0.03% C. 0.05% D. 0.09%
8	Ozone layer is present in	A. Troposphere B. Stratosphere C. Mesosphere D. Ionosphere
9	Global warming is mainly caused by ______ radiations	A. UV B. I.R C. gama D. X-rays
10	White marble buildings are effected by?	A. O₂ B. SO₂ C. CI₂ D. CFC_s

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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

SO2makes ___________ acid rains

HOCl is a compound:

Which gas is not a constituent of atmosphere?

Volcanoes produce SO2:

Ph of unpolluted rain water is

Proxy acetyl nitrate (PAN) is an irritant to human beings and it affect

Choose the chief air pollutant among the following which depletes ozone layer

Increased awareness of environmental issues has led chemists to develop products and processes that do not impact on the environment in terms of pollution or depletion of sources. To help chemist to achieve this aim, some principles are drawn. Which one is not the guiding principle

Pathogens in raw water are killed in step:

Depletion of ozone is more during the month:

In purification of potable water the coagulant used is:

Photochemical smog consists of higher concentration of:

Which gases are produced from landfills?

Augus smith discovered in the mid of seventeenth century:

Water which forms scum with soap is called

Acidification of soil can leach metal:

Increased awareness of environment issues has led chemist to develop products and processes that do not impact on the environment in terms of pollution or depletion of sources. To help chemist to achieve this aim, some principles are drawn, which one is not the guiding principle

Diseases like dysentery, typhoid and hepatitis are caused by mixing of in water:

Oceans, rivers, streams, leaks, polar ice caps, glaciers and group water reservoirs are included in

White marble buildings are effected by?

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

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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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SO₂makes ___________ acid rains

Volcanoes produce SO₂: