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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Munaza 11 - Oct - 2022 00 Min 07 Sec 20/20
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Laiba Khan 24 - Jul - 2022 02 Min 18 Sec 16/20
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Sania Abbas 25 - Jul - 2022 06 Min 13 Sec 16/20
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tahreem fatima 12 - Nov - 2022 00 Min 04 Sec 15/20
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Filza Ahsan 11 - Nov - 2022 01 Min 33 Sec 15/20
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Faiz Barvi443 19 - Mar - 2023 03 Min 29 Sec 14/20
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Amat Nur 27 - Jun - 2023 07 Min 07 Sec 14/20
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Abdullah 11 - Apr - 2023 10 Min 50 Sec 14/20
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Dania 01 - Jan - 2023 14 Min 03 Sec 14/20
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Ali Ahmed Tauqeer 03 - Mar - 2024 03 Min 27 Sec 13/20
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Anaya 07 - Jul - 2023 04 Min 28 Sec 13/20
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Urooj Wajid 15 - Sep - 2022 06 Min 47 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	Which is unnecessary for purification of water for drinking purposes	A. Coagulation B. Aeration C. Treatment with Iodine D. Treatment with chlorine
2	Chloroform is carcinogenic:	A. Heart B. Lungs C. Liver D. Kidney
3	The 95.5% mass of Lithoshone is made of 11 elements i,e O₂, Si, Al, Fe, Ca, Na, K, Mg, Ti, H₂and P. Which element is present in trace amount	A. iodine B. bromine C. lead D. carbon
4	Which one of the pollutants of automobile exhausts affects the nervous system or produces mental diseases	A. NO₂ B. SO₂ C. Hg D. Pb
5	Boron, aluminium, gallium, indium and thallium belong to group lll-A of the periodic table show a decrease with increasing relative atomic mass:	A. Ionic character of the compounds B. The first ionization energy C. The basic character of the oxides D. The stability of +2 oxidation
6	Ozone is an allotropic form of:	A. Carbon B. Phosphorus C. Oxygen D. Sulfur
7	Pathogens in raw water are killed in step:	A. aeration B. coagulation C. chlorination D. treatment
8	Chose a point which is not included in the components of environment	A. Stratosphere B. Hydrosphere C. Lithosphere D. Biosphere
9	Biochemical oxygen demand is the capacity of organic matter in natural water to consume oxygen	A. 2 days B. 5 days C. 6 days D. 7 days
10	Which gases are produced from landfills?	A. NH₃ B. H₂S C. N₂ D. All 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

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

Leaching of nutrients is due to

Detergent greatly effects the

What is the morality of a solution containing 15g of urea is 500cm3 of solution?

The range of UV-B is:

Organic pollutants in water are measured by

How many times a newspaper can be recycled

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

The cause of minamata disease is the pollution of

The concentration of dissolved molecular oxygen in water which acts as the most important oxidizing agent ranges from

Coagulation in the purification of water is carried out by

Water is purified by the process:

SO2 produced by volcanoes is about

The most important pesticides are:

Which of the following waster material is not recycled for use again

In addition to many pollutants present in ground water, a successful study was conducted to remove a highly Toxic chemical.What chemical is this

Which of the following is a macronutrient?

The region of earth capable of supporting life is

Boron, aluminium, gallium, indium and thallium belong to group lll-A of the periodic table show a decrease with increasing relative atomic mass:

In the atmosphere, O2is about

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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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What is the morality of a solution containing 15g of urea is 500cm³ of solution?

SO₂produced by volcanoes is about

In the atmosphere, O₂is about