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

Most hazardous metal pollutant of automobile exhaust is

Question # 2

Which is not the affect of polluted air on environment

Question # 3

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

Question # 4

Atmosphere of big/metropolitan cities is polluted most by

Question # 5

Acid rain is due to increase in atmospheric concentration of

Question # 6

The region of earth capable of supporting life is

Question # 7

Biodegradable pollutant is

Question # 8

Classical smog occurs in palces of

Question # 9

Which one is not a pollutant normally?

Question # 10

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

Question # 11

Which step is unnecessary for purification of water for drinking purposes

Question # 12

As it passes into food chain, the concentration of DDT

Question # 13

Pollutant of automobile exhausts that affects nervous system/produces mental diseases is

Question # 14

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

Question # 15

Ozone hole is maximum over

Question # 16

SO2Makes ______ acid rains

Question # 17

Water pollution is mainly due to

Question # 18

The normal amount of overhead ozone is about

Question # 19

Spraying of DDT produces pollution of

Question # 20

Exposure to CO results in

Question # 21

The % of CO2is the atmosphere is

Question # 22

Ground and surface waters are contaminated and become polluted due to the human activity. Which human activity will bot cause water pollution

Question # 23

What is the cause of water pollution

Question # 24

Which gasses are produced from landfills

Question # 25

Chromium (VI) is highly toxic and can cause

Question # 26

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

Question # 27

Mottling of teeth is due to presence of an element in drinking water

Question # 28

Domestic waste mostly constitutes

Question # 29

Which causes water pollution?

Question # 30

In the atmosphere, CO2is 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
    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
  • C
    Computer mail 10 - Feb - 2026 07 Min 01 Sec 76/120

ECAT Chemistry Chapter 27 Important MCQ's

Sr.# Question Answer
1 The largest item which is recycled is
A. Newspaper
B. Plastic
C. Aluminium
D. Oil
2 In the atmosphere, CO2is about
A. 0.01%
B. 0.03%
C. 0.05%
D. 0.09%
3 Hydrocarbans, SO2, CO, NH3, nitrogen oxides and compounds of fluorine are called
A. Primary pollutant
B. Secondary pollutant
C. Tertiary pollutant
D. None of these
4 When rain is accompanied by a thunderstorm, the collected rain water will have a pH value
A. Uninfluenced by occurrence of thuderstorm
B. Which depends on the amount of dust in air
C. Slightly lower than that of rain water without thunderstorm
D. Slighlty higher than that when the thunderstom is not there
5 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
6 The % of CO2is the atmosphere is
A. 3.0%
B. 0.03%
C. 0.3%
D. 0.5%
7 Soil remediation means
A. To make it suitable for cultivation of crops
B. To make it acidic
C. To make it alkeline
D. To add manure into it
8 Drawback DDT as presticide is
A. I becomes ineffective after some time
B. It is less effective than others
C. It is not easily/rapidly degraded in nature
D. Its high cost
9 In Antarctica ozone depletion is due to the formation of following compound
A. Acrolein
B. Peroxy acetyl nitrate
C. SO2and SO3
D. Chlorine nitrate
10 Spraying of DDT produces pollution of
A. Air
B. Air and water
C. Air and soil
D. Air, water and soil

Test Questions

Is this page helpful?