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.

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MCAT Chemistry Chapter 21 Important MCQ's

Sr.#	Question	Answer
1	The amount of Si in the lithosphere is about	A. 27.72% B. 30.35% C. 35.30% D. 40.21%
2	Which is not an air pollutant	A. N₂ B. CO C. NO D. N₂O
3	The disposal of domestic refuse, commercial and industrial solid wastes are studied under the title	A. Solid waste management B. Waste management C. Solid management D. Semisolid management
4	a hole used to dump the municipal wastes is called:	A. landfill B. effluents C. leachate D. inclneration
5	How much quantity of water is in the domestic use	A. 0.08% B. 16% C. 24% D. 90%
6	Which is unnecessary for purification of water for drinking purposes	A. Coagulation B. Aeration C. Treatment with Iodine D. Treatment with chlorine
7	Lead pollution is mainly due to	A. Metallic pollution B. Space pollution C. Acid rain D. Cd pollution
8	Elevated concentration of ______________ is harmful for fish as it clog the gills causing suffocation	A. AI B. Hg C. As D. Cr(vi)
9	SO₂makes ___________ acid rains	A. carbonic acid B. Sulfuric C. Nitric acid D. All of these
10	Which not a method for solid waste management>	A. Landfill B. Incinerating C. Recycling 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

Biochemical oxygen demand (BOD) is the capacity of organic matter in natural water to consume oxygen with in a period of

Photo chemical smog contains ______ as main reactants

Water is essential for life on

Atmosphere consists of gasses:

Acid rain is caused when various atmospheric gases dissolve in rain water. What are the gases that cause rain water

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

Leachate contains:

DDT is a:

A single chloride free redical can destroy bow many ozene molecules?

CFCs destroy ozone layer. How many ozone molecule a chlorine free radical can destory

Ecology is a science of environment and deals specially with

Major cause of SO2 on global scale is

SO2makes ___________ acid rains

The temperature of in the incineration of industrial and hazardous waste process has range

The temperature in the incineration process has a range:

Chemicals used to kill herbs are:

Eleven elements made part of earth mass:

Organic pollutants in water are measured by

Which of the following does not contribute towards the formation of photochemical smog?

Coagulation in the purification of water is carried out by

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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