ECAT Pre Engineering Chemistry Chapter 27 MCQ Test With Answer

MCQ's Test For ECAT Chemistry Chapter 27 Environmental Chemistry

Try The MCQ's Test For ECAT Chemistry Chapter 27 Environmental Chemistry

  • Total Questions30

  • Time Allowed30

Start Test Download PDF

ECAT Chemistry Chapter 27 Environmental Chemistry

00:00
Question # 1

When rain is accompanied by a thunderstorm, the collected rain water will have a pH value

Question # 2

Which of the following is responsible for depletion of the ozone layer in the upper strata of the atmosphere?

Question # 3

Ultraviolet radiation from sun causes a reaction that produces

Question # 4

Drained sewage has B.O.D

Question # 5

Hydrocarbans, SO2, CO, NH3, nitrogen oxides and compounds of fluorine are called

Question # 6

Environmental pollution affects

Question # 7

Increasing skin cancer and high mutation rate are due to

Question # 8

One of the environmental 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 # 9

Chlorofluorocarbon, CF2CI2, plays an effective role in removing O3(ozone) in the stratosphere. Which reaction does not cause the depletion of ozone

Question # 10

Carbon monoxide, emitted by automobiles, prevents transport of oxygen in body due

Question # 11

Carbon monoxide is pollutant as it

Question # 12

Fungicides are the pesticides which

Question # 13

Classical smog occurs in palces of

Question # 14

Exposure to CO results in

Question # 15

When chlorofluoro carbon are subjected to U.V. they form

Question # 16

The region of earth capable of supporting life is

Question # 17

Acid rains are produced by

Question # 18

Which of the following forms a toxic substance in blood by combing with hemoglobin?

Question # 19

Photochemical smog is caused by

Question # 20

In incinerating the waste is burnt at

Question # 21

Domestic waste mostly constitutes

Question # 22

In the atmosphere, O2is about

Question # 23

Pollution is

Question # 24

Any substance in the environment which adversely affects the human health and natural functioning of the Ecosystem is known as

Question # 25

Atmosphere of big/metropolitan cities is polluted most by

Question # 26

What is the cause of water pollution

Question # 27

The film forming components of paints are

Question # 28

Drawback DDT as presticide is

Question # 29

Minamata disease is due to pollution of

Question # 30

Which factor is helping to reduce the environmental pollution

Submit

Prepare Complete Set Wise ECAT Chemistry Chapter 27 Environmental Chemistry MCQs Online With Answers


Topic Test

00:00
Submit

Top Scorers Of ECAT Chemistry Chapter 27 Environmental Chemistry MCQ`s Test

  • F
    Farzand Shah Farzand Shah 10 - Apr - 2024 03 Min 00 Sec 120/120
  • T
    Tanzeel Ur Rehman 28 - May - 2024 04 Min 15 Sec 115/120
  • M
    M Umer Arain 24 - Dec - 2024 00 Min 04 Sec 110/120
  • A
    Alyna Fatima 25 - Mar - 2024 03 Min 12 Sec 110/120
  • S
    Sarosh Amjad 21 - Jan - 2025 03 Min 44 Sec 110/120
  • A
    Abid Ali 19 - May - 2024 10 Min 33 Sec 110/120
  • A
    Alyna Fatima 25 - Mar - 2024 03 Min 28 Sec 105/120
  • Z
    Zaman Shehzad 24 - May - 2024 09 Min 53 Sec 95/120
  • M
    Muhammad Uzair 05 - Jun - 2024 03 Min 33 Sec 90/120
  • A
    Azeema Siddique Muhammad Siddique 13 - Mar - 2024 04 Min 24 Sec 90/120
  • Z
    Zargaii 92 29 - May - 2024 06 Min 59 Sec 90/120
  • C
    Cricket Expert's 27 - May - 2024 03 Min 01 Sec 85/120
  • M
    Muhammad Saleem 06 - Dec - 2024 13 Min 11 Sec 85/120
  • T
    tayyab ali 20 - May - 2024 19 Min 22 Sec 80/120
  • C
    Computer mail 10 - Feb - 2026 07 Min 01 Sec 76/120

ECAT Chemistry Chapter 27 Important MCQ's

Sr.# Question Answer
1 Contamination of Hg comes into surface water from chlor industrial wastes. Why is Hg toxic
A. It attaches to sulphur of the disulphide link
B. Hg is a heavy metal
C. Hg is liquid at room temperature
D. Hg is non reactive chemically
2 Which is not the affect of polluted air on environment
A. Acid rain
B. Smog
C. Ozone
D. Global warming
3 Swage water is purified by
A. Microorganisms
B. Light
C. Fishes
D. Aquatic plants
4 Any substance in the environment which adversely affects the human health and natural functioning of the Ecosystem is known as
A. Environment
B. Hydrosphere
C. Pollutant
D. Biosphere
5 Chloroflurocarbon releases a chemical harmful to ozone
A. Fluorine
B. Chlorine
C. Nitrogen peroxide
D. Sulphure dioxdie
6 Drained sewage has B.O.D
A. More than that of water
B. Less than that of water
C. Equal to that of water
D. None of the above
7 Shahi Qilla may be destroyed by
A. Flood in Ravi
B. Temperature mediated spoilage of marble
C. Air pollutants from Lahore chemical industries
D. All the above
8 The largest item which is recycled is
A. Newspaper
B. Plastic
C. Aluminium
D. Oil
9 Air pollution is not caused by
A. Pollen grains
B. Hydroelectric power
C. Industries
D. Automobiles
10 Chief air pollutant which is likely to deplete ozone layer
A. Sulphure dioxide
B. Carbon dioxide
C. Nitrogen oxides and chloro fluorocarbons

Test Questions

Is this page helpful?

Share your comments & questions here

Guest

  • No comments yet. Be the first to comment!