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

SO2and NO2produce pollution by increasing

Question # 2

Classical smog occurs in palces of

Question # 3

What is the cause of water pollution

Question # 4

A single chlorine free radical can destroy how many ozone molecules

Question # 5

The pH range of the acid rain is

Question # 6

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

Question # 7

Carbon monoxide is pollutant as it

Question # 8

Air pollution is not caused by

Question # 9

Sulphur dioxide affects

Question # 10

Oceans cove ______ percent of the surface of the earth

Question # 11

Chlorofluorocarbon, CF2CI2, plays an effective role in removing O3(ozone) in the stratosphere. Which reaction does not cause the depletion of ozone

Question # 12

Ultraviolet radiation from sun causes a reaction that produces

Question # 13

Acid rains are produced by

Question # 14

Acid rain is due to increase in atmospheric concentration of

Question # 15

In incinerating the waste is burnt at

Question # 16

Cyclone collector is used for minimizing

Question # 17

Which step is unnecessary for purification of water for drinking purposes

Question # 18

The amount of oxygen in the lithosphere is about

Question # 19

Which causes water pollution?

Question # 20

When rain is accompanied by a thunderstorm, the collected rain water will have a pH value

Question # 21

Which of the following waste material is not recycled for use again

Question # 22

DDT is

Question # 23

When chlorofluoro carbon are subjected to U.V. they form

Question # 24

Soil remediation means

Question # 25

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 # 26

One of the environmental problem is the formation of oil slicks when oil is spilled from tankers in sea water. Which treatment is suitable to remove oil slicks

Question # 27

Domestic waste mostly constitutes

Question # 28

Chromium (VI) is highly toxic and can cause

Question # 29

Chromium (VI) is highly toxic and can cause

Question # 30

Drawback DDT as presticide 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
    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 is not the affect of polluted air on environment
A. Acid rain
B. Smog
C. Ozone
D. Global warming
2 The normal amount of overhead ozone is about
A. 250 Du
B. 300 DU
C. 350 DU
D. 400 DU
3 Most hazardous metal pollutant of automobile exhaust is
A. Mercury
B. Lead
C. Cadmium
D. Copper
4 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
5 In Antarctica ozone depletion is due to the formation of following compound
A. Acrolein
B. Peroxy acetyl nitrate
C. SO2and SO3
D. Chlorine nitrate
6 Chromium (VI) is highly toxic and can cause
A. Blindness
B. Cancer
C. Liver problems
D. Blood problems
7 Chromium (VI) is highly toxic and can cause
A. Blindness
B. Cancer
C. Liver problems
D. Blood problems
8 Ultraviolet radiation from sun causes a reaction that produces
A. Fluorides
B. Carbon monoxide
C. Sulphur dioxide
D. Ozone
9 Spraying of DDT produces pollution of
A. Air
B. Air and water
C. Air and soil
D. Air, water and soil
10 Sulphur dioxide affects
A. Cell wall
B. Plasmodesmata
C. All membrane systems
D. Nucleus

Test Questions

Share your comments & questions here

Guest

  • No comments yet. Be the first to comment!