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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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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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	Which of the following human activities are contaminating surface and ground waters?	A. pesticides B. septic ranks C. petroleum and natural gas production D. all of these
3	Hydrosphere covers the surface of erath:	A. 70.8% B. 71.8% C. 72.8% D. 73.8%
4	Ozone is an allotropic form of:	A. Carbon B. Phosphorus C. Oxygen D. Sulfur
5	Surface and ground water sources are contaminated by various human activities which of the followings is not a human activity that causes contamination in fresh water	A. live stock waste B. oil leaks and spills C. disposal of industrial effluents D. rain
6	Which gas produces air pollution?	A. oxides of sulphur B. oxides of carbon C. all of these
7	Oceans cove ____________ percent of the surface of the earth	A. 60 B. 70 C. 80 D. 97
8	Volcanoes produce SO₂:	A. 47% B. 57% C. 67% D. 77%
9	Water is essential for life on	A. Moon B. Space C. Earth D. Sun
10	The normal amount of overhead ozone is	A. 350 DU B. 450 DU C. 400 DU D. 300 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

Detergent greatly effects the

Fungicides are the pesticides which

Leaching of nutrients is due to

Test of incomplete combustion of petrol in the presence of

A pollutant affects

In Purification of potable water the coagulant used is

0.1M HCI having pH =1.0 it is about 100 time stronger than acetic acid what will be the pH of acetic acid:

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

The amount of Si in the lithosphere is about

Which gas is not a constituent of atmosphere?

Which one of the following is used as coagulant for purification potable water

Contamination of water of tanning industries is due to:

Oxides of sulphur react in atmosphere by various reactions to form:

BOD is the oxygen demand with in day(s):

Acidification of soil can leach metal:

A single chloride free radical can destroy the ozone molecules

Fresh water of total earth water is:

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

Hard water can block radiators due to formation of

The pH range of acid rain is?

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

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Set 10

Set 11

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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