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

Chromium (VI) is highly toxic and can cause

Question # 2

As it passes into food chain, the concentration of DDT

Question # 3

Result of ozone hole is

Question # 4

Pick up the correct statement

Question # 5

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

Question # 6

Which of the following is not an air

Question # 7

Carbon monoxide is harmful to human beings as it

Question # 8

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

Question # 9

Any substance in the environment which adversely affects the human health and natural functioning of the Ecosystem is known as

Question # 10

The amount of Si in the lithosphere is about

Question # 11

Ozone hole is maximum over

Question # 12

Photochemical smog is caused by

Question # 13

SO2and NO2produce pollution by increasing

Question # 14

UV radiations bring about

Question # 15

In incinerating the waste is burnt at

Question # 16

Sulphur dioxide affects

Question # 17

Domestic waste mostly constitutes

Question # 18

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

Question # 19

Fungicides are the pesticides which

Question # 20

Which gas is not a constituent of atmosphere

Question # 21

Ozone layer of stratosphere requires protection from indiscriminate use of

Question # 22

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

Question # 23

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

Question # 24

Minamata disease is due to pollution of

Question # 25

Which of the following forms a toxic substance in blood by combing with hemoglobin?

Question # 26

Chief air pollutant which is likely to deplete ozone layer

Question # 27

To purify water which has mud dissolved in it, A substance which coagulates the suspended particles is used. The coagulant may be

Question # 28

Chromium (VI) is highly toxic and can cause

Question # 29

Acid rain is due to increase in atmospheric concentration of

Question # 30

Drained sewage has B.O.D

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ECAT Chemistry Chapter 27 Important MCQ's

Sr.# Question Answer
1 Spraying of DDT produces pollution of
A. Air
B. Air and water
C. Air and soil
D. Air, water and soil
2 Which is not a method for solid waste management
A. Landfill
B. Incinerating
C. Recycling
D. None of these
3 Which gas is not a constituent of atmosphere
A. Xe
B. O3
C. H2
D. F2
4 Ozone in most of the tropical regions acts as a pollutant and causes
A. Damages to eyes
B. Aggravates asthma
C. Chest discomfort
D. All of these
5 Mottling of teeth is due to presence of an element in drinking water
A. Mercury
B. Fluorine
C. Boron
D. Chlorine
6 NO and NO2gases in atmosphere are represented by
A. NO
B. NO4
C. NOx
D. NxOy
7 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
8 Which one of the following is not air pollutant gas
A. CO
B. CO2
C. NO
D. SO2
9 Which one of the following dissolves more rapidly in blood hemoglobin than oxygen?
A. Ozone
B. Nitrous oxide
C. Sulphure dioxide
D. Carbon monoxide
10 In water the most important oxidizing agent is dissolved molecular oxygen which ranges from
A. 2 - 4 ppm
B. 4 - 6 ppm
C. 2 - 5 ppm
D. 4 - 8 ppm

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