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

Polycyolic aromatic hydrocarbons are taught to be

Question # 2

In purification of potable water the coagulant used is

Question # 3

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

Question # 4

Classical smog occurs in palces of

Question # 5

The amount of Si in the lithosphere is about

Question # 6

The film forming components of paints are

Question # 7

Minamata disease is due to pollution of

Question # 8

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

Question # 9

Ozone hole refers to

Question # 10

Chromium (VI) is highly toxic and can cause

Question # 11

Which one of the following is not air pollutant gas

Question # 12

Result of ozone hole is

Question # 13

In the atmosphere, CO2is about

Question # 14

Chief source of water and soil pollution is

Question # 15

Water which his considered to be safe for human consumption is known as

Question # 16

In incinerating the waste is burnt at

Question # 17

SO2and NO2produce pollution by increasing

Question # 18

Contamination of Hg comes into surface water from chlor industrial wastes. Why is Hg toxic

Question # 19

Eutrophication causes reduction in

Question # 20

Increasing skin cancer and high mutation rate are due to

Question # 21

NO and NO2gases in atmosphere are represented by

Question # 22

Which step is unnecessary for purification of water for drinking purposes

Question # 23

Burning of fossil fuels is the main source of pollution

Question # 24

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

Question # 25

Soil salinity can be measured by

Question # 26

Ultraviolet radiation from sun causes a reaction that produces

Question # 27

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

Question # 28

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

Question # 29

Cyclone collector is used for minimizing

Question # 30

The normal amount of overhead ozone is about

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ECAT Chemistry Chapter 27 Important MCQ's

Sr.# Question Answer
1 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
2 UV radiations bring about
A. Skin cancer
B. Mouth cancer
C. Lung cancer
D. Liver cancer
3 Which one of the following is not air pollutant gas
A. CO
B. CO2
C. NO
D. SO2
4 NO and NO2gases in atmosphere are represented by
A. NO
B. NO4
C. NOx
D. NxOy
5 Soil salinity can be measured by
A. Calorimeter
B. Potometer
C. Porometer
D. Conducitvity meter
6 Ozone depletion in stratosphere shall result in
A. Forest fires
B. Increased incidence of skin cancer
C. Global warming
D. None of the above
7 Atomospheric pollutant is
A. CO2
B. CO
C. O2
D. N2
8 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
A. Iodine
B. Bromine
C. Lead
D. Carbon
9 Biodegradable pollutant is
A. Plastic
B. Asbestos
C. Sewage
D. Mercury
10 The largest item which is recycled is
A. Newspaper
B. Plastic
C. Aluminium
D. Oil

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