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.

Top Scorers Of MDCAT Chemistry Chapter 21 Environmental Chemistry Online Test MCQ`s Test

M

Munaza 11 - Oct - 2022 00 Min 07 Sec 20/20
L

Laiba Khan 24 - Jul - 2022 02 Min 18 Sec 16/20
S

Sania Abbas 25 - Jul - 2022 06 Min 13 Sec 16/20
T

tahreem fatima 12 - Nov - 2022 00 Min 04 Sec 15/20
F

Filza Ahsan 11 - Nov - 2022 01 Min 33 Sec 15/20
F

Faiz Barvi443 19 - Mar - 2023 03 Min 29 Sec 14/20
B

Basit Khan 09 - Aug - 2022 06 Min 44 Sec 14/20
A

Amat Nur 27 - Jun - 2023 07 Min 07 Sec 14/20
A

Abdullah 11 - Apr - 2023 10 Min 50 Sec 14/20
D

Dania 01 - Jan - 2023 14 Min 03 Sec 14/20
A

Ali Ahmed Tauqeer 03 - Mar - 2024 03 Min 27 Sec 13/20
A

Anaya 07 - Jul - 2023 04 Min 28 Sec 13/20
U

Urooj Wajid 15 - Sep - 2022 06 Min 47 Sec 13/20
M

Meer Sadeed 07 - Sep - 2023 10 Min 50 Sec 13/20
R

Rana Ubaid Chohan 16 - Jul - 2022 10 Min 50 Sec 13/20

MCAT Chemistry Chapter 21 Important MCQ's

Sr.#	Question	Answer
1	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
2	Factors affecting quality of water:	A. D.O B. BOD C. COD D. a,b,c
3	Most harmful of biosphere is	A. Deforestation B. Nuclear fail out C. Salinity D. Water logging
4	Men residence time of methane in atmosphere in years is:	A. 1-7 B. 2-7 C. 3-7 D. 4-7
5	The pH rain of acid rain is	A. 8 - 7 B. 7 - 6.5 C. 6.5 - 6 D. less than 5
6	Which not a method for solid waste management>	A. Landfill B. Incinerating C. Recycling D. None of these
7	The semi solid wastes in landfills is called:	A. Landfill B. effluents C. Leachate D. Incineration
8	The water is considered to be polluted when the concentration of oxygen in it is	A. 6 - 9ppm B. 6 ppm C. 8 ppm D. Less than 4pm
9	The reason of acid rains is	A. Release of CO in excess by in complete combustion B. Excess release of NO₂and SO₂from buring of fossil fules C. Formation of excess CO₂due to combustion and respiration D. Formation of NH₃in excess from industry and coal gas
10	Ozone is effectively removed by	A. TNT B. CFCs C. PVC D. CNG

Latest Educational News Stories

Pakistan's Largest Database of Colleges and Universities

BS Programs

University Past Papers

University Results

Exam Results 2024

Study Abroad Programs and Opportunities for Pakistani Students

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

Chlorination of water is effective for

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

The normal amount of overhead ozone is about in DU:

Pathogens in raw water are killed in step:

The pH range of acid rain is?

Synthetic organic pesticides formulated nowadays are more then:

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

Lithosphere has amount of silicon

Forms of waste products:

Water is purified by the process:

Chose a point which is not included in the components of environment

Which of the following is not the required condition for the formation of smog

Ozone is most of the tropical regions acts as a pollutant and causes

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

Poisoning of CO can be reveresed by giving oxygen at pressure:

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

During thunderstorms, water dissolves

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

The incineration may reduce volume of wastes upto:

Choose the chief air pollutant among the following which depletes ozone layer

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

Set 1

Set 2

Set 3

Set 4

Set 5

Set 6

Set 7

Set 8

Set 9

Set 10

Set 11

Set 12

Set 13

Set 14

Set 15

Set 16

Set 17

Topic Test

Top Scorers Of MDCAT Chemistry Chapter 21 Environmental Chemistry Online Test MCQ`s Test

MCAT Chemistry Chapter 21 Important MCQ's

Test Questions

Is this page helpful?

Share your comments & questions here

maryam

Alishba

Alishba