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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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	SO₂and NO₂cause pollution due to increase in	A. Buffer action B. Basicity C. Acidity D. Neutrality
2	Which is not a component of environment?	A. Biosphere B. Lithosphere C. Hydrosphere D. None of these
3	Ozone is effectively removed by	A. TNT B. CFCs C. PVC D. CNG
4	How much quantity of water is in the domestic use	A. 0.08% B. 16% C. 24% D. 90%
5	In water the most important oxidizing agent is dissolved molecular oxygen which ranges form	A. 2 - 4 ppm B. 4 - 6 ppm C. 2 - 5 ppm D. 4 - 8 ppm
6	Chemical equilibrium involving reactants and products in more than one phase is called:	A. Homogeneous B. Heterogeneous C. Dynamic D. Static
7	Global warming is mainly caused by ______ radiations	A. UV B. I.R C. gama D. X-rays
8	Polar ice caps can melt due to	A. Acid rain B. Green House Effect C. Smog D. Chlorofluorocarbons
9	By the mid of 1980s depletion of total overhead ozone in antarctic region is	A. 20% B. 30% C. 40% D. 50%
10	Lithosphere has amount of silicon	A. 35.30% B. 27.72% C. 40.01% D. 21.13%

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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

Density of water becomes maximum at

Fresh water of total earth water is:

In big/metropolitan cities, atmosphere is mostly polluted due to

The normal amount of overhead ozone is about

Coagulation in the purification of water is carried out by

Components of environment is (in km) around the earth:

The normal amount of overhead ozone is

Augus smith discovered in the mid of seventeenth century:

Addition of washing soda removes

The toxic organic compounds and heavy metals and metalloids results in contamination of

A single chlorine free radical can destroy how many ozone molecules

Which is the following is true about galvanic cell:

Property due to which water acts as a universal solvent is

Lithosphere has amount of silicon

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

Choose the correct statements

Which of the following is not a secondary pollutant

What is the cause of water pollution

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

BOD is the oxygen demand with in day(s):

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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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