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

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

Question # 2

Which gas is not a constituent of atmosphere

Question # 3

Pollution is

Question # 4

Cyclone collector is used for minimizing

Question # 5

Photochemical smog is caused by

Question # 6

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

Question # 7

Which of the following is not an air

Question # 8

What is the cause of water pollution

Question # 9

Phosphate pollution is caused by

Question # 10

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 # 11

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

Question # 12

Sulphur dioxide affects

Question # 13

DDT is

Question # 14

Which factor is helping to reduce the environmental pollution

Question # 15

Result of ozone hole is

Question # 16

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 # 17

The region of earth capable of supporting life is

Question # 18

A single chlorine free radical can destroy how many ozone molecules

Question # 19

Ozone in most of the tropical regions acts as a pollutant and causes

Question # 20

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

Question # 21

Burning of fossil fuels is the main source of pollution

Question # 22

B.O.D is connected with

Question # 23

Which one is the most toxic?

Question # 24

The pH of the rain water in areas where acid rain is the cause of pollution may be

Question # 25

Ozone hole is maximum over

Question # 26

Exposure to CO results in

Question # 27

In the atmosphere, CO2is about

Question # 28

Environmental pollution affects

Question # 29

Depletion of ozone layer is due to

Question # 30

Water is often treated with chlorine to

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
  • 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
  • A
    Ayesha Fatima 28 - Jul - 2024 06 Min 59 Sec 75/120

ECAT Chemistry Chapter 27 Important MCQ's

Sr.# Question Answer
1 Water is often treated with chlorine to
A. Increase oxygen content
B. Kill germs
C. Remove hardness
D. Remove suspended particles
2 Which is not a component of environment
A. Biosphere
B. Lithospahre
C. Hydrosphere
D. None of these
3 Which of the following human activities are contaminating surface and ground waters
A. Pesticides
B. Septic tanks
C. Petroleum and natural gas production
D. All of these
4 Cyclone collector is used for minimizing
A. Radioactive pollution
B. Air pollution
C. Noise pollution
D. Water pollution
5 Ozone hole is maximum over
A. Europe
B. Antarctica
C. Asia
D. Africa
6 Ozone in most of the tropical regions acts as a pollutant and causes
A. Damages to eyes
B. Aggravates asthma
C. Chest discomfort
D. All of these
7 Which of the following is responsible for depletion of the ozone layer in the upper strata of the atmosphere?
A. Fullerences
B. Freons
C. Polyhalogens
D. Ferrocene
8 Which one of the following dissolves more rapidly in blood hemoglobin than oxygen?
A. Ozone
B. Nitrous oxide
C. Sulphure dioxide
D. Carbon monoxide
9 Water pollution is mainly due to
A. Sulphure dioxide
B. Carbon dioxide
C. Oxygen
D. Industrial discharges
10 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

Test Questions

Is this page helpful?

Share your comments & questions here

Guest

  • No comments yet. Be the first to comment!