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 region of earth capable of supporting life is

Question # 2

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

Question # 3

Chromium (VI) is highly toxic and can cause

Question # 4

What is the cause of water pollution

Question # 5

Chloroflurocarbon releases a chemical harmful to ozone

Question # 6

Shahi Qilla may be destroyed by

Question # 7

Photochemical smog is caused by

Question # 8

NO and NO2gases in atmosphere are represented by

Question # 9

Which causes water pollution?

Question # 10

Potable water is considered to be

Question # 11

In the atmosphere, O2is about

Question # 12

Air pollution is not caused by

Question # 13

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

Question # 14

Industrial effuents have toxic synthetic organic compounds as well as heavy metals like

Question # 15

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 # 16

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

Question # 17

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

Question # 18

Which is not a method for solid waste management

Question # 19

Drawback DDT as presticide is

Question # 20

The amount of Si in the lithosphere is about

Question # 21

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

Question # 22

Burning of fossil fuels is the main source of pollution

Question # 23

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

Question # 24

Which is not the condition for the formation of smog

Question # 25

Ozone depletion in stratosphere shall result in

Question # 26

In the atmosphere, CO2is about

Question # 27

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

Question # 28

Sulphur dioxide affects

Question # 29

A pollutant affects

Question # 30

DDT is

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ECAT Chemistry Chapter 27 Important MCQ's

Sr.# Question Answer
1 Which gasses are produced from landfills
A. NH3
B. H2S
C. N2
D. All of these
2 Which one is the major reason for pollution in high cities?
A. Fossil fuel
B. Acid rain
C. Heat dispersion
D. None of the above
3 The film forming components of paints are
A. Resins
B. Thinners
C. Pigments
D. Driers
4 Air pollution is not caused by
A. Pollen grains
B. Hydroelectric power
C. Industries
D. Automobiles
5 Atomospheric pollutant is
A. CO2
B. CO
C. O2
D. N2
6 Ecology is a science of environment and deals specially with
A. Stratosphere
B. Biosphere
C. Lithosphere
D. Hydrosphere
7 The pH of the rain water in areas where acid rain is the cause of pollution may be
A. 6.5
B. 5.6
C. 4.5
D. 2.2
8 DDT is
A. Biodegradable pollutant
B. Nondegradable pollutant
C. Not a pollutant
D. An antibiotic
9 Atmosphere of big/metropolitan cities is polluted most by
A. Automobile exhausts
B. Pesticide residue
C. Household waste
D. Radio-active fall out
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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