MDCAT Chemistry Chapter 21 MCQ Test With Answer for (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.

MCQ's Test For MDCAT Chemistry Chapter 21 Environmental Chemistry Online Test

Try The MCQ's Test For MDCAT Chemistry Chapter 21 Environmental Chemistry Online Test

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MDCAT Chemistry Chapter 21 Environmental Chemistry Online Test

00:00
Question # 1

White marble buildings are effected by?

Question # 2

Which of the following air pollutant is called quiet killer

Question # 3

Ozone layer is present in

Question # 4

Which gas produces air pollution?

Question # 5

The words smog is a combination of smoke and:

Question # 6

Ozone layer is

Question # 7

Chemistry related to the study of environment affected by the chemicals and pollutants is called:

Question # 8

Nitrogen in the atmosphere is:

Question # 9

The region of earth capable of supporting life is

Question # 10

Why is carbon monoxide called as pollutant? The reason is that

Question # 11

NO and NO2gases in atmosphere are represented by

Question # 12

Part of fresh water consumed in domestic purpose:

Question # 13

Water bodies are included in:

Question # 14

Property due to which water acts as a universal solvent is

Question # 15

Half of the mass of atmosphere is concentrated above earth at the hieght of

Question # 16

Which one of the following is not a component of environment

Question # 17

For incineration temperature range is (in oC)

Question # 18

Heat balance of earth is maintained by sphere:

Question # 19

Exhaust fumes of cars contain which poisonous gas

Question # 20

Water exist in only

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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 Ozone gas has boiling point:
A. Low
B. High
C. Medium
D. Highest
3 Increased awareness of environment issues has led chemist to develop products and processes that do not impact on the environment in terms of pollution or depletion of sources. To help chemist to achieve this aim, some principles are drawn, which one is not the guiding principle
A. avoid waste production
B. use no solvent
C. use a catalyst
D. devise a multistep procedure for synthesis of new compounds
4 Ecosystem is a smaller unit of
A. Hydrosphere
B. Lithosphere
C. Biosphere
D. Atmosphere
5 Carbon Monoxide is:
A. colouriess
B. orderless
C. high toxic
D. All of these
6 The Catalyst used in the contact tower for the manufacture of H2SO4  is easily poisoned by:
A. Nitrous oxide
B. Nitrogen gas
C. Arsenic oxide 
D. Carbon dioxide 
7 Amount of ozone in atmosphere is expressed in units:
A. Kilograms
B. cm
C. molarity
D. DU
8 Chemical equilibrium involving  reactants and products in more than one phase is called:
A. Homogeneous 
B. Heterogeneous 
C. Dynamic
D. Static
9 How much pesticides have been synthesized at present?
A. Four thousand
B. Six thousand
C. Eight thousand
D. Ten thousand
10 Depletion of ozone is more during the month:
A. Jan-March
B. April-Jun
C. July-Aug
D. Sept-Nov

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