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

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

Question # 3

Sulphur dioxide affects

Question # 4

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

Question # 5

Environmental pollution affects

Question # 6

Ozone hole refers to

Question # 7

Which is not a method for solid waste management

Question # 8

Ozone depletion in stratosphere shall result in

Question # 9

Which heavy metals do not have any safe limits

Question # 10

Oceans cove ______ percent of the surface of the earth

Question # 11

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

Question # 12

In incinerating the waste is burnt at

Question # 13

Potable water is considered to be

Question # 14

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 # 15

Atmosphere of big/metropolitan cities is polluted most by

Question # 16

Carbon monoxide is pollutant as it

Question # 17

Domestic waste mostly constitutes

Question # 18

Which factor is helping to reduce the environmental pollution

Question # 19

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

Question # 20

Which is not the condition for the formation of smog

Question # 21

Fungicides are the pesticides which

Question # 22

Shahi Qilla may be destroyed by

Question # 23

Chief air pollutant which is likely to deplete ozone layer

Question # 24

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

Question # 25

UV radiations bring about

Question # 26

B.O.D is connected with

Question # 27

Atomospheric pollutant is

Question # 28

Ozone hole is maximum over

Question # 29

Air pollution is not caused by

Question # 30

Polycyolic aromatic hydrocarbons are taught to be

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ECAT Chemistry Chapter 27 Important MCQ's

Sr.# Question Answer
1 Soil remediation means
A. To make it suitable for cultivation of crops
B. To make it acidic
C. To make it alkeline
D. To add manure into it
2 Polycyolic aromatic hydrocarbons are taught to be
A. Disinfectant
B. Carcinogenic
C. Helpful
D. Reactive
3 Pollution is
A. Removal of top soill
B. Release of toxic/undesirable materials in enevironment
C. Conversation of energy
D. All the above
4 Chief source of water and soil pollution is
A. Mining
B. Thermal power plant
C. Agro-industry
D. All the above
5 When chlorofluoro carbon are subjected to U.V. they form
A. Cations
B. Anions
C. Free radicals
D. None of these
6 Drawback DDT as presticide is
A. I becomes ineffective after some time
B. It is less effective than others
C. It is not easily/rapidly degraded in nature
D. Its high cost
7 Atmosphere of big/metropolitan cities is polluted most by
A. Automobile exhausts
B. Pesticide residue
C. Household waste
D. Radio-active fall out
8 Soil salinity can be measured by
A. Calorimeter
B. Potometer
C. Porometer
D. Conducitvity meter
9 Which one of the following is not air pollutant gas
A. CO
B. CO2
C. NO
D. SO2
10 The normal amount of overhead ozone is about
A. 250 Du
B. 300 DU
C. 350 DU
D. 400 DU

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