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

One of the environmental problem is the formation of oil slicks when oil is spilled form tankers in sea water. Which treatment is suitable to remove oil slicks

Question # 2

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

Question # 3

Synthetic organic pesticides formulated nowadays are more then:

Question # 4

Property due to which water acts as a universal solvent is

Question # 5

Phenomenon of acid rains gain importance in:

Question # 6

Which is not considered as pollutant

Question # 7

Detergent greatly effects the

Question # 8

Biochemical oxygen demand (BOD) is the capacity of organic matter in natural water to consume oxygen with in a period of

Question # 9

Which factor is helping to reduce the environment pollution

Question # 10

Which of the following waster material is not recycled for use again

Question # 11

a hole used to dump the municipal wastes is called:

Question # 12

Ozone is usually produced in the

Question # 13

Potable water is considered to be

Question # 14

One of the environment problem is the formation of oil slicks when oil is spilled from tankers in sea water.
Which treatment is suitable to remove oil slicks

Question # 15

Atmosphere consists of gasses:

Question # 16

Surface and ground water sources are contaminated by various human activities. Which of the following is not a human activity that causes contamination in fresh water

Question # 17

The range of UV-B is:

Question # 18

How much quantity of water is in the domestic use

Question # 19

Which gas produces air pollution?

Question # 20

Many petroleum products are:

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MCAT Chemistry Chapter 21 Important MCQ's

Sr.# Question Answer
1 Property due to which water acts as a universal solvent is
A. Polarity
B. It's ability to make hydrogen bond
C. Both A and B
D. Strong dipole dipole interaction
2 Water which his considered to be safe for human consumption is known as
A. distilled water
B. contaminated water
C. potable water
D. rain water
3 Which factor is helping to reduce the environmental pollution
A. Urbanization
B. Industrialization
C. Increase of plantation
D. Rapid growth of population
4 Contamination of water of tanning industries is due to:
A. Cr(III)
B. Cr(VI)
C. Mn(III)
D. Mn(VII)
5 By the mid of 1980s depletion of total overhead ozone in antarctic region is
A. 20%
B. 30%
C. 40%
D. 50%
6 Ozone layer is high:
A. 20-23 km
B. 22-25 km
C. 23-26 km
D. 25-28 km
7 Addition of washing soda removes
A. Softness of water
B. Temporary hardness of water
C. Permanent hardness of water
D. Hydrogen from water
8 Which one of the following is an organic compound?
A. Calcium carbide
B. Calcium cyanide
C. Carbon disulphide
D. None of these 
9 Which of the following is not the required condition for the formation of smog
A. Sufficient NO
B. Sunlight
C. Less movement of air
D. Winds
10

Natural water is
A. Pure
B. Impure
C. Acts as solute
D. Distilled

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