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

Swage water is purified by

Question # 2

Which is not a method for solid waste management

Question # 3

A pollutant affects

Question # 4

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

Question # 5

DDT is

Question # 6

The pH range of the acid rain is

Question # 7

Polycyolic aromatic hydrocarbons are taught to be

Question # 8

Chlorofluorocarbon, CF2CI2, plays an effective role in removing O3(ozone) in the stratosphere. Which reaction does not cause the depletion of ozone

Question # 9

Chromium (VI) is highly toxic and can cause

Question # 10

Which is not a component of environment

Question # 11

Chief air pollutant which is likely to deplete ozone layer

Question # 12

Which is not the condition for the formation of smog

Question # 13

Pick up the correct statement

Question # 14

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

Question # 15

Ozone layer of stratosphere requires protection from indiscriminate use of

Question # 16

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

Question # 17

Most hazardous metal pollutant of automobile exhaust is

Question # 18

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

Question # 19

Ozone hole is maximum over

Question # 20

Pollution is

Question # 21

Fungicides are the pesticides which

Question # 22

Which factor is helping to reduce the environmental pollution

Question # 23

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

Question # 24

Environmental pollution affects

Question # 25

Which one is the most toxic?

Question # 26

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

Question # 27

Minamata disease is due to pollution of

Question # 28

BOD is

Question # 29

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

Question # 30

In the atmosphere, CO2is about

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ECAT Chemistry Chapter 27 Important MCQ's

Sr.# Question Answer
1 Ozone hole is maximum over
A. Europe
B. Antarctica
C. Asia
D. Africa
2 Which gasses are produced from landfills
A. NH3
B. H2S
C. N2
D. All of these
3 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
4 Water is often treated with chlorine to
A. Increase oxygen content
B. Kill germs
C. Remove hardness
D. Remove suspended particles
5 Acid rain is caused when various atmospheric gases dissolve in rain water. What are the gases that cause rain water
A. SO2
B. NO2
C. CO
D. A and b only
6 Which heavy metals do not have any safe limits
A. As
B. Hg
C. Cr
D. All of these
7 The pH range of the acid rain is
A. 8 - 7
B. 7 - 6.5
C. 6.5 - 6
D. Less than 5
8 Drained sewage has B.O.D
A. More than that of water
B. Less than that of water
C. Equal to that of water
D. None of the above
9 SO2and NO2produce pollution by increasing
A. Alkalinity
B. Acidity
C. Neutrality
D. Buffer action
10 Burning of fossil fuels is the main source of pollution
A. Nitrogen oxide
B. Nitric oxide
C. Nitrous oxide
D. Sulphur dioxide

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