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

Water pollution is mainly due to

Question # 2

Water which his considered to be safe for human consumption is known as

Question # 3

Ozone depletion in stratosphere shall result in

Question # 4

Minamata disease is due to pollution of

Question # 5

The film forming components of paints are

Question # 6

Which gasses are produced from landfills

Question # 7

Shahi Qilla may be destroyed by

Question # 8

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

Question # 9

What is the cause of water pollution

Question # 10

Which one of the following dissolves more rapidly in blood hemoglobin than oxygen?

Question # 11

UV radiations bring about

Question # 12

Value of chemical oxygen demand (COD) is a measure of chemically oxidizable matter in water. Which value of COD will indicate more polluted water

Question # 13

Which factor is helping to reduce the environmental pollution

Question # 14

Exposure to CO results in

Question # 15

Ecology is a science of environment and deals specially with

Question # 16

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

Question # 17

Increased asthmatic attacks in certain seasons are related to

Question # 18

In incinerating the waste is burnt at

Question # 19

In purification of potable water the coagulant used is

Question # 20

The pH range of the acid rain is

Question # 21

Acid rain is due to increase in atmospheric concentration of

Question # 22

Chief source of water and soil pollution is

Question # 23

Depletion of ozone layer is due to

Question # 24

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

Question # 25

SO2and NO2produce pollution by increasing

Question # 26

Drained sewage has B.O.D

Question # 27

Biodegradable pollutant is

Question # 28

Pick up the correct statement

Question # 29

Most hazardous metal pollutant of automobile exhaust is

Question # 30

The amount of Si in the lithosphere is about

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 Which gas is not a constituent of atmosphere
A. Xe
B. O3
C. H2
D. F2
2 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
3 Ozone hole is maximum over
A. Europe
B. Antarctica
C. Asia
D. Africa
4 Carbon monoxide is harmful to human beings as it
A. Is carcinogenic
B. Is antagonistic to CO2
C. Has higher affinity for hemoglobin as compared to oxygen
D. Is destructive to O3
5 The amount of Si in the lithosphere is about
A. 27.72%
B. 30.35%
C. 35.30%
D. 40.21%
6 SO2Makes ______ acid rains
A. Carbonic acid
B. Sulfuric
C. Nitric acid
D. All of these
7 Chromium (VI) is highly toxic and can cause
A. Blindness
B. Cancer
C. Liver problems
D. Blood problems
8 Acid rain is caused when various atmospheric gases dissolve in rain water. What are the gases that cause rain water
A. SO2
B. NO2
C. CO
D. A and b only
9 The film forming components of paints are
A. Resins
B. Thinners
C. Pigments
D. Driers
10 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
A. Live stock waste
B. Oil leaks and spills
C. Disposal of industrial effluents
D. Rain

Test Questions

Share your comments & questions here

Guest

  • No comments yet. Be the first to comment!