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

Phosphate pollution is caused by

Question # 2

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

Question # 3

SO2and NO2produce pollution by increasing

Question # 4

Which one is not a pollutant normally?

Question # 5

Hydrocarbans, SO2, CO, NH3, nitrogen oxides and compounds of fluorine are called

Question # 6

Exposure to CO results in

Question # 7

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

Question # 8

The pH range of the acid rain is

Question # 9

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

Question # 10

Soil salinity can be measured by

Question # 11

Shahi Qilla may be destroyed by

Question # 12

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

Question # 13

SO2Makes ______ acid rains

Question # 14

Ozone layer of stratosphere requires protection from indiscriminate use of

Question # 15

Chief source of water and soil pollution is

Question # 16

Ultraviolet radiation from sun causes a reaction that produces

Question # 17

Ozone depletion in stratosphere shall result in

Question # 18

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 # 19

DDT is

Question # 20

Which gasses are produced from landfills

Question # 21

Acid rain is due to increase in atmospheric concentration of

Question # 22

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

Question # 23

A single chlorine free radical can destroy how many ozone molecules

Question # 24

Pick up the correct statement

Question # 25

Atomospheric pollutant is

Question # 26

Which is not a component of environment

Question # 27

UV radiations bring about

Question # 28

Polycyolic aromatic hydrocarbons are taught to be

Question # 29

Carbon monoxide is harmful to human beings as it

Question # 30

Photochemical smog is caused by

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ECAT Chemistry Chapter 27 Important MCQ's

Sr.# Question Answer
1 A pollutant affects
A. Human health
B. Quality of life
C. Functioning of ecosystem
D. All of these
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 Swage water is purified by
A. Microorganisms
B. Light
C. Fishes
D. Aquatic plants
4 Water which his considered to be safe for human consumption is known as
A. Distilled water
B. Contaminated water
C. Potable water
D. Rain water
5 Acid rains are produced by
A. Excess NO2and SO2 from burining fossil fuels
B. Excess production of NH3by industry and coal gas
C. Excess release of carbon monoxide by incomplete combustion
D. Excess formation of CO2by combustion and animal respiration
6 Environmental pollution affects
A. Biotic components
B. Plants only
C. Man only
D. Biotic and abiotic components of environment
7 Pollutant of automobile exhausts that affects nervous system/produces mental diseases is
A. Mercury
B. Lead
C. Nitrogen oxide
D. Sulphuric oxide
8 Most hazardous metal pollutant of automobile exhaust is
A. Mercury
B. Lead
C. Cadmium
D. Copper
9 CFCs destroy ozone layer. How many ozone molecule a chlorine free radical can destroy
A. 10,000
B. 20,000
C. 100,000
D. 50,000
10 Ozone in most of the tropical regions acts as a pollutant and causes
A. Damages to eyes
B. Aggravates asthma
C. Chest discomfort
D. All of these

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