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

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ECAT Chemistry Chapter 27 Environmental Chemistry

00:00
Question # 1

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

Question # 2

Increasing skin cancer and high mutation rate are due to

Question # 3

Which one is not a pollutant normally?

Question # 4

Which is not a component of environment

Question # 5

In incinerating the waste is burnt at

Question # 6

Which is not the affect of polluted air on environment

Question # 7

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

Question # 8

Phosphate pollution is caused by

Question # 9

Pick up the correct statement

Question # 10

Increased asthmatic attacks in certain seasons are related to

Question # 11

Which factor is helping to reduce the environmental pollution

Question # 12

Ozone hole refers to

Question # 13

What is the cause of water pollution

Question # 14

Atomospheric pollutant is

Question # 15

Pollution is

Question # 16

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

Question # 17

A pollutant affects

Question # 18

Swage water is purified by

Question # 19

Biodegradable pollutant is

Question # 20

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

Question # 21

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

Question # 22

The largest item which is recycled is

Question # 23

BOD is

Question # 24

Which of the following waste material is not recycled for use again

Question # 25

Ecosystem is a smaller unit of

Question # 26

Classical smog occurs in palces of

Question # 27

Shahi Qilla may be destroyed by

Question # 28

Acid rains are produced by

Question # 29

In the atmosphere, CO2is about

Question # 30

Which is not a method for solid waste management

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ECAT Chemistry Chapter 27 Important MCQ's

Sr.# Question Answer
1 The region of earth capable of supporting life is
A. Hydrosphere
B. Lithosphere
C. Biosphere
D. Atmosphere
2 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
3 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
4 Photochemical smog is caused by
A. CO
B. CO2
C. O3
D. NO2
5 Which one of the following is not air pollutant gas
A. CO
B. CO2
C. NO
D. SO2
6 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
7 The largest item which is recycled is
A. Newspaper
B. Plastic
C. Aluminium
D. Oil
8 Atmosphere of big/metropolitan cities is polluted most by
A. Automobile exhausts
B. Pesticide residue
C. Household waste
D. Radio-active fall out
9 Ozone in most of the tropical regions acts as a pollutant and causes
A. Damages to eyes
B. Aggravates asthma
C. Chest discomfort
D. All of these
10 Industrial effuents have toxic synthetic organic compounds as well as heavy metals like
A. Pb
B. Cr
C. Hg
D. All of these

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