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

Phosphate pollution is caused by

Question # 2

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

Question # 3

Biodegradable pollutant is

Question # 4

Ozone layer of stratosphere requires protection from indiscriminate use of

Question # 5

A single chlorine free radical can destroy how many ozone molecules

Question # 6

Chief air pollutant which is likely to deplete ozone layer

Question # 7

Which is not the condition for the formation of smog

Question # 8

Which causes water pollution?

Question # 9

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

Question # 10

UV radiations bring about

Question # 11

Environmental pollution affects

Question # 12

SO2Makes ______ acid rains

Question # 13

Domestic waste mostly constitutes

Question # 14

Burning of fossil fuels is the main source of pollution

Question # 15

In incinerating the waste is burnt at

Question # 16

The amount of Si in the lithosphere is about

Question # 17

BOD is

Question # 18

Drawback DDT as presticide is

Question # 19

In the atmosphere, CO2is about

Question # 20

Potable water is considered to be

Question # 21

Ozone depletion in stratosphere shall result in

Question # 22

Exposure to CO results in

Question # 23

DDT is

Question # 24

Chromium (VI) is highly toxic and can cause

Question # 25

Which is not the affect of polluted air on environment

Question # 26

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

Question # 27

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

Question # 28

B.O.D is connected with

Question # 29

Chloroflurocarbon releases a chemical harmful to ozone

Question # 30

In purification of potable water the coagulant used is

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 Which causes water pollution?
A. Smoke/fly ash
B. Automobile exhausts
C. Aeroplnes
D. 2,4-D and pesticides
2 Ground and surface waters are contaminated and become polluted due to the human activity. Which human activity will bot cause water pollution
A. Live stock waste
B. Agricultural pesticides
C. Oil breaks and spills
D. All of the above
3 Sulphur dioxide affects
A. Cell wall
B. Plasmodesmata
C. All membrane systems
D. Nucleus
4 Which one of the following dissolves more rapidly in blood hemoglobin than oxygen?
A. Ozone
B. Nitrous oxide
C. Sulphure dioxide
D. Carbon monoxide
5 The pH range of the acid rain is
A. 8 - 7
B. 7 - 6.5
C. 6.5 - 6
D. Less than 5
6 Which of the following is not an air
A. N2
B. N2O
C. NO
D. CO
7 Soil salinity can be measured by
A. Calorimeter
B. Potometer
C. Porometer
D. Conducitvity meter
8 Which of the following forms a toxic substance in blood by combing with hemoglobin?
A. Carbon dioxide
B. Carbon monoxide
C. Oxygen
D. Methane
9 Burning of fossil fuels is the main source of pollution
A. Nitrogen oxide
B. Nitric oxide
C. Nitrous oxide
D. Sulphur dioxide
10 The normal amount of overhead ozone is about
A. 250 Du
B. 300 DU
C. 350 DU
D. 400 DU

Test Questions

Is this page helpful?

Share your comments & questions here

Guest

  • No comments yet. Be the first to comment!