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 one of the following is not air pollutant gas

Question # 2

Sulphur dioxide affects

Question # 3

Acid rain is caused when various atmospheric gases dissolve in rain water. What are the gases that cause rain water

Question # 4

Pick up the correct statement

Question # 5

Biodegradable pollutant is

Question # 6

Ozone hole refers to

Question # 7

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

Question # 8

Water pollution is mainly due to

Question # 9

A pollutant affects

Question # 10

Ozone depletion in stratosphere shall result in

Question # 11

Soil salinity can be measured by

Question # 12

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

Question # 13

Soil remediation means

Question # 14

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

Question # 15

Which one is the most toxic?

Question # 16

A single chlorine free radical can destroy how many ozone molecules

Question # 17

The pH range of the acid rain is

Question # 18

Ozone hole is maximum over

Question # 19

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

Question # 20

SO2and NO2produce pollution by increasing

Question # 21

Polycyolic aromatic hydrocarbons are taught to be

Question # 22

Classical smog occurs in palces of

Question # 23

Phosphate pollution is caused by

Question # 24

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

Question # 25

One of the environmental problem is the formation of oil slicks when oil is spilled from tankers in sea water. Which treatment is suitable to remove oil slicks

Question # 26

In purification of potable water the coagulant used is

Question # 27

Which one is not a pollutant normally?

Question # 28

In the atmosphere, O2is about

Question # 29

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

Question # 30

Eutrophication causes reduction in

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ECAT Chemistry Chapter 27 Important MCQ's

Sr.# Question Answer
1 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
A. Live stock waste
B. Oil leaks and spills
C. Disposal of industrial effluents
D. Rain
2 SO2Makes ______ acid rains
A. Carbonic acid
B. Sulfuric
C. Nitric acid
D. All of these
3 The % of CO2is the atmosphere is
A. 3.0%
B. 0.03%
C. 0.3%
D. 0.5%
4 What is the cause of water pollution
A. Chemical and bacterial contents in live stock
B. The spilled oil in rivers and ponds
C. Wide spread use of pesticides
D. All of the above
5 Which of the following waste material is not recycled for use again
A. Paper
B. Plastic
C. Hides of animals
D. Glass
6 Sulphur dioxide affects
A. Cell wall
B. Plasmodesmata
C. All membrane systems
D. Nucleus
7 Which one of the following is not air pollutant gas
A. CO
B. CO2
C. NO
D. SO2
8 Ecology is a science of environment and deals specially with
A. Stratosphere
B. Biosphere
C. Lithosphere
D. Hydrosphere
9 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
10 The pH range of the acid rain is
A. 8 - 7
B. 7 - 6.5
C. 6.5 - 6
D. Less than 5

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