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 force which hold the atoms together to form a compound is called:	A. Dispersion forces B. London forces C. A chemical bond D. Ven der wall's forces
2	The gases in the atmosphere are essential for sustaining life on earth. Thus oxygen is required for breathing. What for is carbon dioxide required	A. To help plant to under go photosynthesis B. To destroy nitrogen oxide from the atmosphere C. To help to clean the atmosphere D. To help in fixing of bacteria
3	Volcanoes produce SO₂:	A. 47% B. 57% C. 67% D. 77%
4	The temperature of in the incineration of industrial and hazardous waste process has range	A. 900 - 1000°C B. 250 - 500°C C. 950 - 1300°C D. 500 - 900°C
5	Leather tanneries use big auantities of:	A. Cr Vi salts B. Cr III salts C. Mn-salts D. Pb-salts
6	Chloroform is carcinogenic:	A. Heart B. Lungs C. Liver D. Kidney
7	Out of total amount of water available for human use is	A. 0.30% B. 0.2% C. 40% D. 50%
8	Which is the most toxic among the given?	A. heavy metals B. non-metals C. Metals D. Metalloids
9	Eleven elements made part of earth mass:	A. 97.5% B. 98.5% C. 99.5% D. 100%
10	Hydrocarbons, SO₂, CO, NH₃nitrogen oxides and compounds of fluorine are called	A. Primary pollutant B. Secondary pollutant C. Tertiary pollutant D. None of these

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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

Water which forms scum with soap is called

SO2makes ___________ acid rains

Chose a point which is not included in the components of environment

The semi solid wastes in landfills is called:

What is the effect of polluted air on environment

Commonly used coagulants are ions of:

Hardness which can be removed by boiling is called

The normal amount of overhead ozone is

Sulphate aerosols cause severe respiratory problems particularly among

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

Cyclone collector is used to reduce

Ratio of hydrogen (H) and oxygen (O) in water molecule by volume is

Carbon Monoxide is:

Which one is more toxic?

Ph of unpolluted rain water is

The words smog is a combination of smoke and:

Water is purified by the process:

Oceans cove ____________ percent of the surface of the earth

Ozone is usually produced in the

The destructive distillation of coal gives three products. which of following is not the product of destructive distillation of coal?

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

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Set 12

Set 13

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Set 15

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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

Test Questions

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SO₂makes ___________ acid rains

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