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

  • Total Questions20

  • Time Allowed20

Start Test Download PDF

MDCAT Chemistry Chapter 21 Environmental Chemistry Online Test

00:00
Question # 1

Acid rain is caused when various atmospheric gases dissolve in rain water. What are the gases that cause rain water

Question # 2

Ozone layer is present in

Question # 3

SO2makes ___________ acid rains

Question # 4

Density of water becomes maximum at

Question # 5

Reason of pollution are:

Question # 6

Hard water can block radiators due to formation of

Question # 7

Heat balance of earth is maintained by sphere:

Question # 8

Proxy acetyl nitrate (PAN) is an irritant to human beings and it affect

Question # 9

Synthetic organic pesticides formulated nowadays are more then:

Question # 10

Coal contains sulphur in it:

Question # 11

Factors affecting quality of water:

Question # 12

Transportation causes to produce CO2 in atmosphere:

Question # 13

Nitrogen in the atmosphere is:

Question # 14

Why a C- C bond breaks by uv light

Question # 15

Alkali metals react viotlently with halogens:

Question # 16

Hydrosphere includes

Question # 17

An excellent source of energy without causing pollution is

Question # 18

Which factor is helping to reduce the environment pollution

Question # 19

HOCl is a compound:

Question # 20

The pH rain of acid rain is

Submit

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


Topic Test

00:00
Submit

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 Why a C - Cl bond breaks by uv light
A. Cl is most electronegative
B. Cl is volatile
C. C - Cl bond energy is smaller than that of C - H bond energy
D. Uv light provides energy which is sufficient to break C - Cl bond and not C - H bond
2 In addition to many pollutants present in ground water, a successful study was conducted to remove a highly Toxic chemical.What chemical is this
A. Cobalt
B. Nickel
C. Arsenic
D. Sulphur
3 Water is purified by the process:
A. Aeration
B. Coagulation
C. Chlorination
D. All of these
4 Which one is more toxic?
A. Fe
B. C
C. Hg
D. Ag
5 The pH range of the acid rain is
A. 6.5 - 6
B. Less than 5
C. 8 - 7.5
D. 7 - 6.5
6 Water is essential for life on
A. Moon
B. Space
C. Earth
D. Sun
7 Nitrogen percentage in atmosphere is:
A. 76%
B. 77%
C. 78%
D. 79%
8
Which of the following is not a secondary pollutant
A. Ozone
B. Carbonic acid
C. Sulphuric acid
D. Carbon dioxide
9 Proxy acetyl nitrate (PAN) is an irritant to human beings and it affect
A. Nose
B. Stomach
C. Eyes
D. Ears
10 The incineration may reduce volume of wastes upto:
A. 1/4th
B. 1/2nd
C. 2/3rd
D. 3/4th

Test Questions