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

Domestic waste mostly constitutes

Question # 2

Atomospheric pollutant is

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

Acid rain is due to increase in atmospheric concentration of

Question # 5

Which factor is helping to reduce the environmental pollution

Question # 6

Result of ozone hole is

Question # 7

Increased asthmatic attacks in certain seasons are related to

Question # 8

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

Question # 9

Chromium (VI) is highly toxic and can cause

Question # 10

Water pollution is mainly due to

Question # 11

As it passes into food chain, the concentration of DDT

Question # 12

Fungicides are the pesticides which

Question # 13

Ecology is a science of environment and deals specially with

Question # 14

Acid rain is caused when various atmospheric gases dissolve in rain water. What are the gases that cause rain water

Question # 15

The largest item which is recycled is

Question # 16

The % of CO2is the atmosphere is

Question # 17

A single chlorine free radical can destroy how many ozone molecules

Question # 18

Ozone depletion in stratosphere shall result in

Question # 19

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

Question # 20

Ozone hole is maximum over

Question # 21

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

Question # 22

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

Question # 23

A pollutant affects

Question # 24

Shahi Qilla may be destroyed by

Question # 25

Chief source of water and soil 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

Sulphur dioxide affects

Question # 28

Spraying of DDT produces pollution of

Question # 29

The amount of Si in the lithosphere is about

Question # 30

Minamata disease is due to pollution of

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ECAT Chemistry Chapter 27 Important MCQ's

Sr.# Question Answer
1 Which heavy metals do not have any safe limits
A. As
B. Hg
C. Cr
D. All of these
2 Acid rain is caused when various atmospheric gases dissolve in rain water. What are the gases that cause rain water
A. SO2
B. NO2
C. CO
D. A and b only
3 Mottling of teeth is due to presence of an element in drinking water
A. Mercury
B. Fluorine
C. Boron
D. Chlorine
4 The amount of oxygen in the lithosphere is about
A. 35.50%
B. 40.60%
C. 56.60%
D. 50.50%
5 As it passes into food chain, the concentration of DDT
A. Remains same
B. Decreases
C. Increases
D. Unpredictable
6 Chief source of water and soil pollution is
A. Mining
B. Thermal power plant
C. Agro-industry
D. All the above
7 Which of the following waste material is not recycled for use again
A. Paper
B. Plastic
C. Hides of animals
D. Glass
8 Oceans cove ______ percent of the surface of the earth
A. 60
B. 70
C. 80
D. 97
9 In the atmosphere, CO2is about
A. 0.01%
B. 0.03%
C. 0.05%
D. 0.09%
10 Spraying of DDT produces pollution of
A. Air
B. Air and water
C. Air and soil
D. Air, water and soil

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