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

Which factor is helping to reduce the environmental pollution

Question # 2

Which one is the major reason for pollution in high cities?

Question # 3

Environmental pollution affects

Question # 4

Shahi Qilla may be destroyed by

Question # 5

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

Question # 6

Chromium (VI) is highly toxic and can cause

Question # 7

The film forming components of paints are

Question # 8

NO and NO2gases in atmosphere are represented by

Question # 9

The pH range of the acid rain is

Question # 10

Oceans cove ______ percent of the surface of the earth

Question # 11

Drawback DDT as presticide is

Question # 12

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

Question # 13

Which heavy metals do not have any safe limits

Question # 14

Ecology is a science of environment and deals specially with

Question # 15

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 # 16

To purify water which has mud dissolved in it, A substance which coagulates the suspended particles is used. The coagulant may be

Question # 17

Which of the following is not an air

Question # 18

The amount of Si in the lithosphere is about

Question # 19

Eutrophication causes reduction in

Question # 20

Drained sewage has B.O.D

Question # 21

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

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

BOD is

Question # 24

Chief air pollutant which is likely to deplete ozone layer

Question # 25

Exposure to CO results in

Question # 26

Atomospheric pollutant is

Question # 27

Which one of the following is not air pollutant gas

Question # 28

Chromium (VI) is highly toxic and can cause

Question # 29

What is the cause of water pollution

Question # 30

As it passes into food chain, the concentration of DDT

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 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
2 The amount of oxygen in the lithosphere is about
A. 35.50%
B. 40.60%
C. 56.60%
D. 50.50%
3 Fungicides are the pesticides which
A. Control the growth of fungus
B. Kill insects
C. Kill plants
D. Kill herbs
4 Exposure to CO results in
A. Headache
B. Fatigue
C. Unconsciousness
D. All of these
5 Photochemical smog is caused by
A. CO
B. CO2
C. O3
D. NO2
6 Which heavy metals do not have any safe limits
A. As
B. Hg
C. Cr
D. All of these
7 Which one of the following is not air pollutant gas
A. CO
B. CO2
C. NO
D. SO2
8 Ozone hole is maximum over
A. Europe
B. Antarctica
C. Asia
D. Africa
9 Which is not a component of environment
A. Biosphere
B. Lithospahre
C. Hydrosphere
D. None of these
10 The 95.5% mass of Lithosphone is made of 11 elements i.e. O2, Si, Al, Fe, Ca, Na, K, Mg, Ti, H2and P. which element is present in trace amount
A. Iodine
B. Bromine
C. Lead
D. Carbon

Test Questions

Share your comments & questions here

Guest

  • No comments yet. Be the first to comment!