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

Acid rains are produced by

Question # 2

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

Question # 3

Hydrocarbans, SO2, CO, NH3, nitrogen oxides and compounds of fluorine are called

Question # 4

UV radiations bring about

Question # 5

Which is not a method for solid waste management

Question # 6

SO2Makes ______ acid rains

Question # 7

Which heavy metals do not have any safe limits

Question # 8

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 # 9

Fungicides are the pesticides which

Question # 10

Soil salinity can be measured by

Question # 11

As it passes into food chain, the concentration of DDT

Question # 12

Which one of the following is not air pollutant gas

Question # 13

Chief source of water and soil pollution is

Question # 14

Classical smog occurs in palces of

Question # 15

Cyclone collector is used for minimizing

Question # 16

Which factor is helping to reduce the environmental pollution

Question # 17

Result of ozone hole is

Question # 18

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 # 19

Ozone depletion in stratosphere shall result in

Question # 20

Sulphur dioxide affects

Question # 21

Ecosystem is a smaller unit of

Question # 22

Phosphate pollution is caused by

Question # 23

Atomospheric pollutant is

Question # 24

Which of the following is responsible for depletion of the ozone layer in the upper strata of the atmosphere?

Question # 25

Biodegradable pollutant is

Question # 26

The amount of oxygen in the lithosphere is about

Question # 27

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

Question # 28

Pollution is

Question # 29

In incinerating the waste is burnt at

Question # 30

Soil remediation means

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 Which is not the condition for the formation of smog
A. There must be sufficient NO gas
B. There must be sunlight to help photo chemical reaction to take place
C. Air must be blowing swiftly
D. There must be SO2in the air
2 Burning of fossil fuels is the main source of pollution
A. Nitrogen oxide
B. Nitric oxide
C. Nitrous oxide
D. Sulphur dioxide
3 A single chlorine free radical can destroy how many ozone molecules
A. 100
B. 100000
C. 10000
D. 10
4 BOD is
A. Biological oxygen deficit
B. Biosphere oxygen demand
C. Biological oxygen demand
D. None of the above
5 Fungicides are the pesticides which
A. Control the growth of fungus
B. Kill insects
C. Kill plants
D. Kill herbs
6 In the atmosphere, CO2is about
A. 0.01%
B. 0.03%
C. 0.05%
D. 0.09%
7 Photochemical smog is caused by
A. CO
B. CO2
C. O3
D. NO2
8 Which one is not a pollutant normally?
A. Hydrocarbons
B. Carbon dioxide
C. Carbon monoxide
D. Sulphur dioxide
9 Which one is the most toxic?
A. Carbon
B. CO
C. CO2
D. SO2
10 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

Test Questions

Is this page helpful?