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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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	How much quantity of water is in the domestic use	A. 0.08% B. 16% C. 24% D. 90%
2	During incineration temperature range of non-rotating chamber is	A. 900-1000C° B. 650-1100C° C. 950-1300C° D. 700-900C°
3	Ground and surface waters are contaminated and become polluted due to the human activity. Which human activity will not cause water pollution	A. live stock waste B. agricultural pesticides C. oil beaks and spills D. all of the above
4	A large hole in the ozone layer over antarctica region was discovered in:	A. 1960s B. 1970s C. 1980s D. 1990s
5	Nitrogen in the atmosphere is:	A. 78% B. 21% C. 0.9% D. 0.03%
6	In the atosphere, CO₂is about	A. 0.01% B. 0.03% C. 0.05% D. 0.09%
7	The main pollutant of leather in the waste water is due to the salt of:	A. Lead B. Chromium (VI) C. Copper D. Chromium (III)
8	Density of water becomes maximum at	A. 10°C B. 4°C C. 5°C D. 12°C
9	Which of the following substance is not present in acid rain?	A. Sulphuric acid B. Nitric acid C. Sulphurous acid D. Acetic acid
10	Amount of ozone in atmosphere is expressed in units:	A. Kilograms B. cm C. molarity D. DU

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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

Materials suspended in water or present as colloidal form in raw water are removed by:

Chemicals used to kill herbs are:

Alkali metals react viotlently with halogens:

The largest item which is recycled is

SO2makes ___________ acid rains

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

Which heavy metals do not have any safe limits

Site of land for landfill is selected based upon.

Lithosphere extends upto kilometer of earth crust in depth:

Potable water is considered to be

Chlorination of water is effective for

Exposure to CO results in

Hydrocarbons, SO2, CO, NH3nitrogen oxides and compounds of fluorine are called

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

Main cause of reducing map is:

Commonly used coagulants are ions of:

Choose the correct statements

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

It is a biodegradable pollutant

Which factor is helping to reduce the environmental pollution

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

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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

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SO₂makes ___________ acid rains

Hydrocarbons, SO₂, CO, NH₃nitrogen oxides and compounds of fluorine are called