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	Which is not considered as pollutant	A. O₃ B. CO₂ C. NO₂ D. SO₂
2	In incinerating the waste is burnt at	A. 1000°C B. 100°C C. 2000°C D. 1500°C
3	Sulphate aerosols cause severe respiratory problems particularly among	A. Infants B. Women C. Young people D. Old people
4	Chlorofluorocarbons and aerosols are inert in sphere:	A. troposphere B. stratosphere C. lithosphere D. hydrosphere
5	Coagulation in the purification of water is carried out by	A. Alum B. NiSO₄ C. BaSO₄ D. CuSO₄
6	a hole used to dump the municipal wastes is called:	A. landfill B. effluents C. leachate D. inclneration
7	Photo chemical smog contains ______ as main reactants	A. Nitrons oxide and unburnt hydrocarbons B. Nilric oxide and unburnt hydrocarbons C. No and burnt hydrocarbons D. N₂O and burnt hydrocarbons
8	The pH of the rain water in areas where acid rain is the cause of pollution may be	A. 6.5 B. 5.6 C. 4.5 D. 2.2
9	How much quantity of water is in the domestic use	A. 0.08% B. 16% C. 24% D. 90%
10	Diseases like dysentery, typhoid and hepatitis are caused by mixing of in water:	A. Live stock wastes B. Oil spilage C. detergents D. pesticides

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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

The reason of acid rains is

A single chlorine free radical can destroy how many ozone molecules

Which of the following is not a secondary pollutant

Which of the following is not the required condition for the formation of smog

Main cause of reducing map is:

Water in swimming pools is purified by adding

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

Surface and ground water sources are contaminated by various human activities. Which of the following is not human activity that causes contamination in fresh water

Dissolved impurities of potable water can be separated by the process of

Splitting of spectral lines when atoms are subjected to strong electric field is called:

Chromium (VI) is highly toxic and can cause

The main pollution of leather tanneries in the waste is due to the salt of

Which of the following substance is not present in acid rain?

Water cover earth surface more than:

It is a biodegradable pollutant

Sulphate aerosols cause severe respiratory problems particularly among

The disposal of domestic refuse, commercial and industrial solid wastes are studied under the title

Detergent greatly effects the

Residence time of methane in the atmosphere is

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 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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