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

Which is not the condition for the formation of smog

Question # 2

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

Question # 3

Which causes water pollution?

Question # 4

Burning of fossil fuels is the main source of pollution

Question # 5

Ozone hole refers to

Question # 6

Depletion of ozone layer is due to

Question # 7

Air pollution is not caused by

Question # 8

Which is not the affect of polluted air on environment

Question # 9

In water the most important oxidizing agent is dissolved molecular oxygen which ranges from

Question # 10

Result of ozone hole is

Question # 11

Water is often treated with chlorine to

Question # 12

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

Question # 13

Pollution is

Question # 14

Which heavy metals do not have any safe limits

Question # 15

Minamata disease is due to pollution of

Question # 16

Atomospheric pollutant is

Question # 17

SO2and NO2produce pollution by increasing

Question # 18

Which gasses are produced from landfills

Question # 19

Ground and surface waters are contaminated and become polluted due to the human activity. Which human activity will bot cause water pollution

Question # 20

Water pollution is mainly due to

Question # 21

As it passes into food chain, the concentration of DDT

Question # 22

The toxic organic compounds and heavy metals and metalloids results in contamination of

Question # 23

Which factor is helping to reduce the environmental pollution

Question # 24

Mottling of teeth is due to presence of an element in drinking water

Question # 25

Carbon monoxide is pollutant as it

Question # 26

In Antarctica ozone depletion is due to the formation of following compound

Question # 27

Polycyolic aromatic hydrocarbons are taught to be

Question # 28

Ozone depletion in stratosphere shall result in

Question # 29

Sulphur dioxide affects

Question # 30

Swage water is purified by

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
    Zainab Tahira 14 - Jun - 2026 03 Min 29 Sec 104/120
  • Z
    Zaman Shehzad 24 - May - 2024 09 Min 53 Sec 95/120
  • M
    Muhammad Uzair 05 - Jun - 2024 03 Min 33 Sec 90/120
  • 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 Increasing skin cancer and high mutation rate are due to
A. Acid rain
B. Ozone depletion
C. CO pollution
D. CO2Pollution
2 In Antarctica ozone depletion is due to the formation of following compound
A. Acrolein
B. Peroxy acetyl nitrate
C. SO2and SO3
D. Chlorine nitrate
3 Chromium (VI) is highly toxic and can cause
A. Blindness
B. Cancer
C. Liver problems
D. Blood problems
4 BOD is
A. Biological oxygen deficit
B. Biosphere oxygen demand
C. Biological oxygen demand
D. None of the above
5 Phosphate pollution is caused by
A. Weathering of phosphate rocks only
B. Agricultural fertilizers
C. Phosphate rocks and sewage
D. Sewage and agricultural fertilizers
6 Increased asthmatic attacks in certain seasons are related to
A. Inhalation of seasonal pollen
B. Eating of seasonal vegetables
C. Low temperature
D. Wet and dry environment
7 A single chlorine free radical can destroy how many ozone molecules
A. 100
B. 100000
C. 10000
D. 10
8 Which is not the affect of polluted air on environment
A. Acid rain
B. Smog
C. Ozone
D. Global warming
9 B.O.D is connected with
A. Organic matter
B. Microbes
C. Mircrobes and organic matter
D. None of the above
10 Atomospheric pollutant is
A. CO2
B. CO
C. O2
D. N2

Test Questions

Share your comments & questions here

Guest

  • No comments yet. Be the first to comment!