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 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
2	BOD means	A. Boron oxygen deuterium B. Biochemical oxygen demand C. Biochemical oxygen dissolved D. Biochemical oxygen death
3	Ground and surface waters are contaminated and become polluted due to the human activity. Which human activity will not cause water pollution	A. live stock waste B. agricultural pesticides C. oil beaks and spills D. all of the above
4	Site of land for landfill is selected based upon.	A. topography B. location of ground C. water table D. All of these
5	Term ozone hole is used for depletion of ozone during months of:	A. Jan-Feb B. March - Sep C. Sep- Nov D. Dec-Feb
6	Part of fresh water consumed in industry is:	A. 1% B. 2% C. 69% D. 23%
7	Ozone layer is	A. 25 - 28 km high B. 26 - 29 km high C. 24 - 27 km high D. 20 - 28 km high
8	The overall effect of the photochemical smog in the after noon is built up of	A. Neutralization B. oxidizing agent C. Reducing agent D. Activating agent
9	Oceans, rivers, streams, leaks, polar ice caps, glaciers and group water reservoirs are included in	A. Atmosphere B. Lithosphere C. Hydrosphere D. Biosphere
10	The pH rain of acid rain is	A. 8 - 7 B. 7 - 6.5 C. 6.5 - 6 D. less than 5

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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

Transformation is a cyclic process in which used plactic is

The pH rain of acid rain is

A large hole in the ozone layer over antarctica region was discovered in:

The region of earth capable of supporting life is

Which gas is not a constituent of atmosphere?

A single chlorine free radical can destory how many ozone molecules

Ground and surface waters are contaminated and become polluted due to the human activity. Which human activity will not cause water pollution

Why a C - Cl bond breaks by uv light

99.5% mass of lithosphere is made of

Chloroform is carcinogenic:

The temperature in the incineration process has a range:

In incinerating the waste is burnt at

A pollutant affects

The gases in the atmosphere are essential for sustaining life on earth. Thus oxygen is required for breathing. What for is carbon dioxide required

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

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

Polar ice caps can melt due to

Peroxyacetylnitrate (PAN) is an irritant to human beings and it affects:

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

Hydrosphere covers the surface of erath:

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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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