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

Acid rains are produced by

Question # 2

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

Question # 3

The 95.5% mass of Lithosphone is made of 11 elements i.e. O2, Si, Al, Fe, Ca, Na, K, Mg, Ti, H2and P. which element is present in trace amount

Question # 4

Carbon monoxide is harmful to human beings as it

Question # 5

Water is often treated with chlorine to

Question # 6

Ecology is a science of environment and deals specially with

Question # 7

As it passes into food chain, the concentration of DDT

Question # 8

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

Question # 9

Sulphur dioxide affects

Question # 10

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

Question # 11

Which one is the major reason for pollution in high cities?

Question # 12

Potable water is considered to be

Question # 13

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

Question # 14

Contamination of Hg comes into surface water from chlor industrial wastes. Why is Hg toxic

Question # 15

Depletion of ozone layer is due to

Question # 16

Ozone hole is maximum over

Question # 17

The amount of oxygen in the lithosphere is about

Question # 18

Which of the following is not an air

Question # 19

Increasing skin cancer and high mutation rate are due to

Question # 20

Classical smog occurs in palces of

Question # 21

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

Question # 22

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

Question # 23

Acid rain is due to increase in atmospheric concentration of

Question # 24

Cyclone collector is used for minimizing

Question # 25

Pollution is

Question # 26

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 # 27

Result of ozone hole is

Question # 28

What is the cause of water pollution

Question # 29

Phosphate pollution is caused by

Question # 30

Shahi Qilla may be destroyed by

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ECAT Chemistry Chapter 27 Important MCQ's

Sr.# Question Answer
1 Industrial effuents have toxic synthetic organic compounds as well as heavy metals like
A. Pb
B. Cr
C. Hg
D. All of these
2 Soil salinity can be measured by
A. Calorimeter
B. Potometer
C. Porometer
D. Conducitvity meter
3 Fungicides are the pesticides which
A. Control the growth of fungus
B. Kill insects
C. Kill plants
D. Kill herbs
4 Chief air pollutant which is likely to deplete ozone layer
A. Sulphure dioxide
B. Carbon dioxide
C. Nitrogen oxides and chloro fluorocarbons
5 Chromium (VI) is highly toxic and can cause
A. Blindness
B. Cancer
C. Liver problems
D. Blood problems
6 Which of the following forms a toxic substance in blood by combing with hemoglobin?
A. Carbon dioxide
B. Carbon monoxide
C. Oxygen
D. Methane
7 Water is often treated with chlorine to
A. Increase oxygen content
B. Kill germs
C. Remove hardness
D. Remove suspended particles
8 As it passes into food chain, the concentration of DDT
A. Remains same
B. Decreases
C. Increases
D. Unpredictable
9 Air pollution is not caused by
A. Pollen grains
B. Hydroelectric power
C. Industries
D. Automobiles
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

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