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	Which of spectral lines when atoms are subjected to strong electric field is called:	A. Compton effect B. Stark effect C. Zeeman effect D. Photoelectric effect
2	The layer of gases around the earth are called?	A. Atmosphere B. Hydrosphere C. Lithosphere D. All of these
3	How much pesticides have been synthesized at present?	A. Four thousand B. Six thousand C. Eight thousand D. Ten thousand
4	Which heavy metals do not have any safe limits	A. As B. Hg C. Cr D. All of these
5	Temporary hardness can be removed by adding	A. Lime B. Carbon C. Oxygen D. Slaked lime
6	Acidification of soil can leach metal:	A. Al B. Hg C. Pb D. Ca
7	The main pollution of leather tanneries in the waste is due to the salt of	A. Chromium B. Copper C. Chromium D. Lead
8	Most harmful of biosphere is	A. Deforestation B. Nuclear fail out C. Salinity D. Water logging
9	Volcanoes produce SO₂:	A. 47% B. 57% C. 67% D. 77%
10	Lanthanides an actinides belong to following group of periodic table:	A. IB B. VIIIB C. IIB D. IIIB

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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

BOD means

Rigid rocky crust earth upto a depth of 100 km is called:

In the atmosphere, O2is about

Contaminated soil can be cleaned by various methods. Which method is not used to clean the soil

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

Oceans, rivers, streams, leaks, polar ice caps, glaciers and group water reservoirs are included in

The process of coagulation can remove suspended solids in raw water about

Region of earth capable of supporting life is called:

An excellent source of energy without causing pollution is

The incineration may reduce volume of wastes upto:

Chemicals used to kill pests are:

Agriculture consumes part of fresh water:

Lithosphere extends upto kilometer of earth crust in depth:

Why a C- C bond breaks by uv light

Part of fresh water consumed in industry is:

Unit of ozone is?

The normal amount of overhead ozone is

During incineration temperature range of non-rotating chamber is

Temporary hardness can be removed by adding

Lanthanides an actinides belong to following group of periodic table:

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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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In the atmosphere, O₂is about