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

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

Question # 2

In the atmosphere, O2is about

Question # 3

Atomospheric pollutant is

Question # 4

Which one is not a pollutant normally?

Question # 5

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

Question # 6

Water is often treated with chlorine to

Question # 7

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 # 8

Eutrophication causes reduction in

Question # 9

Most hazardous metal pollutant of automobile exhaust is

Question # 10

The amount of oxygen in the lithosphere is about

Question # 11

Acid rains are produced by

Question # 12

Which causes water pollution?

Question # 13

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

Question # 14

Soil remediation means

Question # 15

Burning of fossil fuels is the main source of pollution

Question # 16

The region of earth capable of supporting life is

Question # 17

Which heavy metals do not have any safe limits

Question # 18

SO2Makes ______ acid rains

Question # 19

The pH range of the acid rain is

Question # 20

Drained sewage has B.O.D

Question # 21

A pollutant affects

Question # 22

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

Question # 23

Ozone hole is maximum over

Question # 24

BOD is

Question # 25

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

Question # 26

Which one is the most toxic?

Question # 27

Air pollution is not caused by

Question # 28

Depletion of ozone layer is due to

Question # 29

In the atmosphere, CO2is about

Question # 30

Ecology is a science of environment and deals specially with

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
  • R
    Rana Muzamil 12 - Mar - 2024 05 Min 04 Sec 100/120
  • 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

ECAT Chemistry Chapter 27 Important MCQ's

Sr.# Question Answer
1 Which is not a component of environment
A. Biosphere
B. Lithospahre
C. Hydrosphere
D. None of these
2 Chief air pollutant which is likely to deplete ozone layer
A. Sulphure dioxide
B. Carbon dioxide
C. Nitrogen oxides and chloro fluorocarbons
3 Which one is not a pollutant normally?
A. Hydrocarbons
B. Carbon dioxide
C. Carbon monoxide
D. Sulphur dioxide
4 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
5 The amount of oxygen in the lithosphere is about
A. 35.50%
B. 40.60%
C. 56.60%
D. 50.50%
6 Pollution is
A. Removal of top soill
B. Release of toxic/undesirable materials in enevironment
C. Conversation of energy
D. All the above
7 Which of the following waste material is not recycled for use again
A. Paper
B. Plastic
C. Hides of animals
D. Glass
8 The toxic organic compounds and heavy metals and metalloids results in contamination of
A. Surface water
B. Ground water
C. Both surface and ground water
D. Neither surface nor ground waters
9 What is the cause of water pollution
A. Chemical and bacterial contents in live stock
B. The spilled oil in rivers and ponds
C. Wide spread use of pesticides
D. All of the above
10 Chloroflurocarbon releases a chemical harmful to ozone
A. Fluorine
B. Chlorine
C. Nitrogen peroxide
D. Sulphure dioxdie

Test Questions

Is this page helpful?