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

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

Question # 2

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 # 3

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

Question # 4

The largest item which is recycled is

Question # 5

Pick up the correct statement

Question # 6

Which of the following forms a toxic substance in blood by combing with hemoglobin?

Question # 7

Ozone hole is maximum over

Question # 8

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

Question # 9

Which one is the most toxic?

Question # 10

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

Question # 11

Exposure to CO results in

Question # 12

Minamata disease is due to pollution of

Question # 13

The amount of oxygen in the lithosphere is about

Question # 14

In the atmosphere, O2is about

Question # 15

The % of CO2is the atmosphere is

Question # 16

Which step is unnecessary for purification of water for drinking purposes

Question # 17

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

Question # 18

Pollutant of automobile exhausts that affects nervous system/produces mental diseases is

Question # 19

Spraying of DDT produces pollution of

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

Swage water is purified by

Question # 22

Which of the following human activities are contaminating surface and ground waters

Question # 23

In purification of potable water the coagulant used is

Question # 24

Which is not a component of environment

Question # 25

As it passes into food chain, the concentration of DDT

Question # 26

Which is not a method for solid waste management

Question # 27

Photochemical smog is caused by

Question # 28

What is the cause of water pollution

Question # 29

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 # 30

Ecology is a science of environment and deals specially with

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ECAT Chemistry Chapter 27 Important MCQ's

Sr.# Question Answer
1 Chief air pollutant which is likely to deplete ozone layer
A. Sulphure dioxide
B. Carbon dioxide
C. Nitrogen oxides and chloro fluorocarbons
2 Water is often treated with chlorine to
A. Increase oxygen content
B. Kill germs
C. Remove hardness
D. Remove suspended particles
3 Fungicides are the pesticides which
A. Control the growth of fungus
B. Kill insects
C. Kill plants
D. Kill herbs
4 In Antarctica ozone depletion is due to the formation of following compound
A. Acrolein
B. Peroxy acetyl nitrate
C. SO2and SO3
D. Chlorine nitrate
5 A pollutant affects
A. Human health
B. Quality of life
C. Functioning of ecosystem
D. All of these
6 Cyclone collector is used for minimizing
A. Radioactive pollution
B. Air pollution
C. Noise pollution
D. Water pollution
7 Which one is not a pollutant normally?
A. Hydrocarbons
B. Carbon dioxide
C. Carbon monoxide
D. Sulphur dioxide
8 Biodegradable pollutant is
A. Plastic
B. Asbestos
C. Sewage
D. Mercury
9 Soil salinity can be measured by
A. Calorimeter
B. Potometer
C. Porometer
D. Conducitvity meter
10 Atomospheric pollutant is
A. CO2
B. CO
C. O2
D. N2

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