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

Increasing skin cancer and high mutation rate are due to

Question # 2

Which one is the most toxic?

Question # 3

Soil remediation means

Question # 4

Carbon monoxide is pollutant as it

Question # 5

Photochemical smog is caused by

Question # 6

Surface and ground water sources are contaminated by various human activities. Which of the followings is not a human activity that causes contamination in fresh water

Question # 7

Fungicides are the pesticides which

Question # 8

The largest item which is recycled is

Question # 9

Biodegradable pollutant is

Question # 10

Ozone hole is maximum over

Question # 11

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

Question # 12

The normal amount of overhead ozone is about

Question # 13

Ecology is a science of environment and deals specially with

Question # 14

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

Question # 15

BOD is

Question # 16

Ozone hole refers to

Question # 17

Which of the following human activities are contaminating surface and ground waters

Question # 18

Eutrophication causes reduction in

Question # 19

Chromium (VI) is highly toxic and can cause

Question # 20

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

Question # 21

Ultraviolet radiation from sun causes a reaction that produces

Question # 22

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

Question # 23

UV radiations bring about

Question # 24

Water is often treated with chlorine to

Question # 25

Which of the following is not an air

Question # 26

Which heavy metals do not have any safe limits

Question # 27

Industrial effuents have toxic synthetic organic compounds as well as heavy metals like

Question # 28

Which factor is helping to reduce the environmental pollution

Question # 29

Which causes water pollution?

Question # 30

Burning of fossil fuels is the main source of 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
  • R
    Rana Muzamil 12 - Mar - 2024 05 Min 04 Sec 100/120
  • 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

ECAT Chemistry Chapter 27 Important MCQ's

Sr.# Question Answer
1 DDT is
A. Biodegradable pollutant
B. Nondegradable pollutant
C. Not a pollutant
D. An antibiotic
2 A pollutant affects
A. Human health
B. Quality of life
C. Functioning of ecosystem
D. All of these
3 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
4 Ozone hole is maximum over
A. Europe
B. Antarctica
C. Asia
D. Africa
5 Cyclone collector is used for minimizing
A. Radioactive pollution
B. Air pollution
C. Noise pollution
D. Water pollution
6 Pick up the correct statement
A. CO which is major pollutant resulting from the combustion of fuels in automobile plays a major role in photochemical smog
B. Classical smog has an oxidizing character while the phtochemical smog is reducing in character
C. Photochemical smog occurs in day time whereas the classical smog occurs in early morning hours
D. During formation of smog the level of ozone in the atmosphere goes down
7 Phosphate pollution is caused by
A. Weathering of phosphate rocks only
B. Agricultural fertilizers
C. Phosphate rocks and sewage
D. Sewage and agricultural fertilizers
8 UV radiations bring about
A. Skin cancer
B. Mouth cancer
C. Lung cancer
D. Liver cancer
9 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
10 Which of the following is not an air
A. N2
B. N2O
C. NO
D. CO

Test Questions

Is this page helpful?