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 rain of acid rain is	A. 8 - 7 B. 7 - 6.5 C. 6.5 - 6 D. less than 5
2	By the mid of 1980s depletion of total overhead ozone in antarctic region is	A. 20% B. 30% C. 40% D. 50%
3	The words smog is a combination of smoke and:	A. fog B. foke C. fork D. fizzy
4	Which is not a component of environment?	A. Biosphere B. Lithosphere C. Hydrosphere D. None of these
5	Newspapers can be recycled again and again by how many times	A. 5 B. 2 C. 4 D. 3
6	The semi solid wastes in landfills is called:	A. Landfill B. effluents C. Leachate D. Incineration
7	Which one of the following is not a component of environment	A. Biosphere B. Stratosphere C. Hydrosphere D. Lithosphere
8	Troposphere extends upto km:	A. 0-15 km B. 10-15 km C. 15-40 km D. 15-40 km
9	Agriculture consumes part of fresh water:	A. 1% B. 2% C. 69% D. 23%
10	White marble buildings are effected by?	A. O₂ B. SO₂ C. CI₂ D. CFC_s

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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 is the oxygen demand with in day(s):

Which gases are produced from landfills?

The Catalyst used in the contact tower for the manufacture of H2SO4 is easily poisoned by:

Newspaper can be recycled again and again by how many times?

Ozone in most of the tropical regions acts as a pollutant and cause

Fungicides are the pesticides which:

Diseases like dysentery, typhoid and hepatitis are caused by mixing of in water:

As the number of carbon atoms increase the number of isomers also increase. The six carbon compound hexane has as many as:

Which step is unnecessary for purification of water for drinking purposes

Global warming is mainly caused by ______ radiations

By the mid of 1980s depletion of total overhead ozone in antarctic region is

Temporary hardness can be removed by adding

Chemicals used to kill herbs are:

Unit of ozone is?

Ozone layer is

The normal amount of overhead ozone is about

Water is essential for life on

Atmosphere consists of gasses:

Eleven elements made part of earth mass:

Factors affecting quality of water:

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

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Set 12

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Set 15

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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

Test Questions

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The Catalyst used in the contact tower for the manufacture of H₂SO₄ is easily poisoned by: