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

Which one of the following is used as coagulant for purification potable water

Question # 2

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

Question # 3

The rigid rocky part of earth crust called lithosphere extends upto a depth of:

Question # 4

The main pollutant of leather in the waste water is due to the salt of:

Question # 5

Property due to which water acts as a universal solvent is

Question # 6

Organic pollutants in water are measured by

Question # 7

Splitting of spectral lines when atoms are subjected to strong electric field is called:

Question # 8

What is the cause of water pollution

Question # 9

SO2 produced by volcanoes is about

Question # 10

The cause of minamata disease is the pollution of

Question # 11

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

Question # 12

DDT is a:

Question # 13

How much quantity of total water is available as fresh water

Question # 14

Incineration is a process in which solid waste is burned at high temperature ranging from

Question # 15

In the atmosphere, O2is about

Question # 16

An excellent source of energy without causing pollution is

Question # 17

A pollutant affects

Question # 18

Agriculture consumes part of fresh water:

Question # 19

Hardness which can be removed by boiling is called

Question # 20

Ozone layer 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 Density of water becomes maximum at
A. 10°C
B. 4°C
C. 5°C
D. 12°C
2 In water the most important oxidizing agent is dissolved molecular oxygen which ranges form
A. 2 - 4 ppm
B. 4 - 6 ppm
C. 2 - 5 ppm
D. 4 - 8 ppm
3 Water is made disinfectant during purification of water to the step:
A. aeration
B. coagulation
C. chlorination
D. treatment
4 Which not a method for solid waste management>
A. Landfill
B. Incinerating
C. Recycling
D. None of these
5 Hydrocarbons, SO2, CO, NH3nitrogen oxides and compounds of fluorine are called
A. Primary pollutant
B. Secondary pollutant
C. Tertiary pollutant
D. None of these
6 A single chlorine free radical can destroy how many ozone molecules
A. 100
B. 100000
C. 10000
D. 10
7 HOCl is a compound:
A. Polor inorganic
B. organic
C. Ionic
D. covalant
8 What is the effect of polluted air on environment
A. Ozone
B. Acid rain
C. Global warming
D. Smog
9 Sulphate aerosols cause severe respiratory problems particularly among
A. Infants
B. Women
C. Young people
D. Old people
10 Which of the following waster material is not recycled for use again
A. paper
B. plastic
C. hides of animals
D. glass

Test Questions

Is this page helpful?