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

Question # 2

Pick up the correct statement

Question # 3

In purification of potable water the coagulant used is

Question # 4

Chief air pollutant which is likely to deplete ozone layer

Question # 5

Polycyolic aromatic hydrocarbons are taught to be

Question # 6

In the atmosphere, CO2is about

Question # 7

SO2and NO2produce pollution by increasing

Question # 8

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

Question # 9

Which is not the condition for the formation of smog

Question # 10

In incinerating the waste is burnt at

Question # 11

Value of chemical oxygen demand (COD) is a measure of chemically oxidizable matter in water. Which value of COD will indicate more polluted water

Question # 12

Oceans cove ______ percent of the surface of the earth

Question # 13

Classical smog occurs in palces of

Question # 14

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

Question # 15

NO and NO2gases in atmosphere are represented by

Question # 16

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

Question # 17

The film forming components of paints are

Question # 18

Which step is unnecessary for purification of water for drinking purposes

Question # 19

The amount of oxygen in the lithosphere is about

Question # 20

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

Question # 21

Chromium (VI) is highly toxic and can cause

Question # 22

CFCs destroy ozone layer. How many ozone molecule a chlorine free radical can destroy

Question # 23

Biodegradable pollutant is

Question # 24

Carbon monoxide is harmful to human beings as it

Question # 25

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

Question # 26

Acid rain is due to increase in atmospheric concentration of

Question # 27

Ozone hole refers to

Question # 28

The % of CO2is the atmosphere is

Question # 29

Which factor is helping to reduce the environmental pollution

Question # 30

The normal amount of overhead ozone is 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
  • 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 In purification of potable water the coagulant used is
A. Nickle sulpahte
B. Copper sulpahte
C. Barium sulpahte
D. Alum
2 Increasing skin cancer and high mutation rate are due to
A. Acid rain
B. Ozone depletion
C. CO pollution
D. CO2Pollution
3 Which of the following waste material is not recycled for use again
A. Paper
B. Plastic
C. Hides of animals
D. Glass
4 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
5 Pick up the correct statement
A. CO which is major pollutant resulting from the combustion of fuels in automobile plays a major role in photochemical smog
B. Classical smog has an oxidizing character while the phtochemical smog is reducing in character
C. Photochemical smog occurs in day time whereas the classical smog occurs in early morning hours
D. During formation of smog the level of ozone in the atmosphere goes down
6 SO2and NO2produce pollution by increasing
A. Alkalinity
B. Acidity
C. Neutrality
D. Buffer action
7 NO and NO2gases in atmosphere are represented by
A. NO
B. NO4
C. NOx
D. NxOy
8 As it passes into food chain, the concentration of DDT
A. Remains same
B. Decreases
C. Increases
D. Unpredictable
9 Which one of the following is not air pollutant gas
A. CO
B. CO2
C. NO
D. SO2
10 Increased asthmatic attacks in certain seasons are related to
A. Inhalation of seasonal pollen
B. Eating of seasonal vegetables
C. Low temperature
D. Wet and dry environment

Test Questions

Is this page helpful?