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	Hard water can block radiators due to formation of	A. Insoluble calcium and magnesium salts B. Insoluble sodium salts C. In soluble phosphate salts D. Insoluble potassium salts
2	Water is essential for life on	A. Moon B. Space C. Earth D. Sun
3	Which is not an air pollutant	A. N₂ B. CO C. NO D. N₂O
4	Main cause of reducing map is:	A. Combustion of coal B. NO and NO₂ C. Un-burnt hydrocarbons D. All of these
5	To purify water which has mud dissolved in it, a substance which coagulates the suspended particles is used. The coagulant may be	A. Ag⁺ B. Cu²⁺ C. Al³⁺ D. Si⁴⁺
6	Which of the following air pollutant is called quiet killer	A. PAN B. CO C. NO₃ D. SO₃
7	What is the morality of a solution containing 15g of urea is 500cm³ of solution?	A. 1M B. 0.5M C. 2M D. 1.5M
8	The 95.5% mass of Lithoshone is made of 11 elements i,e O₂, Si, Al, Fe, Ca, Na, K, Mg, Ti, H₂and P. Which element is present in trace amount	A. iodine B. bromine C. lead D. carbon
9	Site of land for landfill is selected based upon.	A. topography B. location of ground C. water table D. All of these
10	The pH range of acid rain is?	A. 7-6.5 B. 6.5-6 C. 6-5.6 D. Less than 5

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

Fresh water of total earth water is:

Amount of ozone in atmosphere is expressed in units:

Contamination of Hg comes into surface water from chlor industrial wastes. Why is Hg Toxic.

Ph of unpolluted rain water is

Why a C- C bond breaks by uv light

Volcanoes produce SO2:

Which gas is not a constituent of atmosphere?

The incineration may reduce volume of wastes upto:

Troposphere extends upto km:

Ocean contains part earth's water:

Newspapers can be recycled again and again by how many times

Contamination of water of tanning industries is due to:

Requirement of macronutrient per acre of the land is

Why a C - Cl bond breaks by uv light

Augus smith discovered in the mid of seventeenth century:

Fungicides are the pesticides which:

Chlorofluorocarbons and aerosols are inert in sphere:

Density of water becomes maximum at

How many times a newspaper can be recycled

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

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

Volcanoes produce SO₂: