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 is not a component of environment

Question # 2

Eutrophication causes reduction in

Question # 3

Soil remediation means

Question # 4

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

Question # 5

The normal amount of overhead ozone is about

Question # 6

Drawback DDT as presticide is

Question # 7

Acid rain is due to increase in atmospheric concentration of

Question # 8

Burning of fossil fuels is the main source of pollution

Question # 9

Phosphate pollution is caused by

Question # 10

Which gas is not a constituent of atmosphere

Question # 11

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

Question # 12

A single chlorine free radical can destroy how many ozone molecules

Question # 13

Potable water is considered to be

Question # 14

NO and NO2gases in atmosphere are represented by

Question # 15

Drained sewage has B.O.D

Question # 16

B.O.D is connected with

Question # 17

Minamata disease is due to pollution of

Question # 18

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

Question # 19

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

Question # 20

Which is not the condition for the formation of smog

Question # 21

Atmosphere of big/metropolitan cities is polluted most by

Question # 22

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

Question # 23

In the atmosphere, O2is about

Question # 24

What is the cause of water pollution

Question # 25

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

Question # 26

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

Question # 27

Which is not a method for solid waste management

Question # 28

Chromium (VI) is highly toxic and can cause

Question # 29

UV radiations bring about

Question # 30

Mottling of teeth is due to presence of an element in drinking water

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ECAT Chemistry Chapter 27 Important MCQ's

Sr.# Question Answer
1 Industrial effuents have toxic synthetic organic compounds as well as heavy metals like
A. Pb
B. Cr
C. Hg
D. All of these
2 Fungicides are the pesticides which
A. Control the growth of fungus
B. Kill insects
C. Kill plants
D. Kill herbs
3 SO2Makes ______ acid rains
A. Carbonic acid
B. Sulfuric
C. Nitric acid
D. All of these
4 Acid rain is due to increase in atmospheric concentration of
A. Ozone and dust
B. CO2and CO
C. SO3and CO
D. SO2and NO2
5 Air pollution is not caused by
A. Pollen grains
B. Hydroelectric power
C. Industries
D. Automobiles
6 A pollutant affects
A. Human health
B. Quality of life
C. Functioning of ecosystem
D. All of these
7 NO and NO2gases in atmosphere are represented by
A. NO
B. NO4
C. NOx
D. NxOy
8 Which step is unnecessary for purification of water for drinking purposes
A. Aeration
B. Coagulation
C. Treatment with chlorine
D. Treatment with iodine
9 Which is not a method for solid waste management
A. Landfill
B. Incinerating
C. Recycling
D. None of these
10 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

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