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 gasses are produced from landfills

Question # 2

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

Question # 3

Water pollution is mainly due to

Question # 4

CFCs destroy ozone layer. How many ozone molecule a chlorine free radical can destroy

Question # 5

Most hazardous metal pollutant of automobile exhaust is

Question # 6

Shahi Qilla may be destroyed by

Question # 7

Burning of fossil fuels is the main source of pollution

Question # 8

Soil salinity can be measured by

Question # 9

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

Question # 10

Which is not the condition for the formation of smog

Question # 11

In the atmosphere, O2is about

Question # 12

Value of chemical oxygen demand (COD) is a measure of chemically oxidizable matter in water. Which value of COD will indicate more polluted water

Question # 13

In the atmosphere, CO2is about

Question # 14

Carbon monoxide is pollutant as it

Question # 15

Ultraviolet radiation from sun causes a reaction that produces

Question # 16

Fungicides are the pesticides which

Question # 17

BOD is

Question # 18

Classical smog occurs in palces of

Question # 19

As it passes into food chain, the concentration of DDT

Question # 20

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

Question # 21

Ozone in most of the tropical regions acts as a pollutant and causes

Question # 22

Which is not a method for solid waste management

Question # 23

Which causes water pollution?

Question # 24

Pollution is

Question # 25

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

Question # 26

Which gas is not a constituent of atmosphere

Question # 27

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

Question # 28

Acid rain is due to increase in atmospheric concentration of

Question # 29

Which one is not a pollutant normally?

Question # 30

Soil remediation means

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ECAT Chemistry Chapter 27 Important MCQ's

Sr.# Question Answer
1 Increasing skin cancer and high mutation rate are due to
A. Acid rain
B. Ozone depletion
C. CO pollution
D. CO2Pollution
2 Increased asthmatic attacks in certain seasons are related to
A. Inhalation of seasonal pollen
B. Eating of seasonal vegetables
C. Low temperature
D. Wet and dry environment
3 Ozone hole refers to
A. Hole in ozone layers
B. Reduction in thickness of ozone layer in stratosphere
C. Reduction of thickness of ozone in troposphere
D. Increase concentration of ozone
4 BOD is
A. Biological oxygen deficit
B. Biosphere oxygen demand
C. Biological oxygen demand
D. None of the above
5 Result of ozone hole is
A. Green house effect
B. Global warming
C. Acid rain
D. UV rays reach the earth
6 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
7 Soil salinity can be measured by
A. Calorimeter
B. Potometer
C. Porometer
D. Conducitvity meter
8 Pollutant of automobile exhausts that affects nervous system/produces mental diseases is
A. Mercury
B. Lead
C. Nitrogen oxide
D. Sulphuric oxide
9 Which is not the affect of polluted air on environment
A. Acid rain
B. Smog
C. Ozone
D. Global warming
10 Atmosphere of big/metropolitan cities is polluted most by
A. Automobile exhausts
B. Pesticide residue
C. Household waste
D. Radio-active fall out

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