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

Which is not the affect of polluted air on environment

Question # 2

The largest item which is recycled is

Question # 3

Chromium (VI) is highly toxic and can cause

Question # 4

Air pollution is not caused by

Question # 5

Pollution is

Question # 6

Any substance in the environment which adversely affects the human health and natural functioning of the Ecosystem is known as

Question # 7

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

Question # 8

Polycyolic aromatic hydrocarbons are taught to be

Question # 9

Depletion of ozone layer is due to

Question # 10

Which causes water pollution?

Question # 11

Ecology is a science of environment and deals specially with

Question # 12

Shahi Qilla may be destroyed by

Question # 13

Biodegradable pollutant is

Question # 14

SO2Makes ______ acid rains

Question # 15

Which heavy metals do not have any safe limits

Question # 16

A single chlorine free radical can destroy how many ozone molecules

Question # 17

Ozone hole is maximum over

Question # 18

Increasing skin cancer and high mutation rate are due to

Question # 19

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

Question # 20

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

Question # 21

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

Question # 22

When chlorofluoro carbon are subjected to U.V. they form

Question # 23

To purify water which has mud dissolved in it, A substance which coagulates the suspended particles is used. The coagulant may be

Question # 24

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

Question # 25

SO2and NO2produce pollution by increasing

Question # 26

Which is not a method for solid waste management

Question # 27

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

Question # 28

Cyclone collector is used for minimizing

Question # 29

The film forming components of paints are

Question # 30

Pick up the correct statement

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ECAT Chemistry Chapter 27 Important MCQ's

Sr.# Question Answer
1 Burning of fossil fuels is the main source of pollution
A. Nitrogen oxide
B. Nitric oxide
C. Nitrous oxide
D. Sulphur dioxide
2 Carbon monoxide, emitted by automobiles, prevents transport of oxygen in body due
A. Combining with oxygen to form carbon dioxide
B. Destruction of hemoglobin
C. Preventing reaction between oxygen and hemoglobin
D. Forming stable compound with hemoglobin
3 Ozone depletion in stratosphere shall result in
A. Forest fires
B. Increased incidence of skin cancer
C. Global warming
D. None of the above
4 Biodegradable pollutant is
A. Plastic
B. Asbestos
C. Sewage
D. Mercury
5 NO and NO2gases in atmosphere are represented by
A. NO
B. NO4
C. NOx
D. NxOy
6 Exposure to CO results in
A. Headache
B. Fatigue
C. Unconsciousness
D. All of these
7 Cyclone collector is used for minimizing
A. Radioactive pollution
B. Air pollution
C. Noise pollution
D. Water pollution
8 Which gasses are produced from landfills
A. NH3
B. H2S
C. N2
D. All of these
9 Carbon monoxide is harmful to human beings as it
A. Is carcinogenic
B. Is antagonistic to CO2
C. Has higher affinity for hemoglobin as compared to oxygen
D. Is destructive to O3
10 Any substance in the environment which adversely affects the human health and natural functioning of the Ecosystem is known as
A. Environment
B. Hydrosphere
C. Pollutant
D. Biosphere

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