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

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

Question # 2

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

Question # 3

UV radiations bring about

Question # 4

Classical smog occurs in palces of

Question # 5

Which one is the major reason for pollution in high cities?

Question # 6

The amount of Si in the lithosphere is about

Question # 7

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

Question # 8

In Antarctica ozone depletion is due to the formation of following compound

Question # 9

Which step is unnecessary for purification of water for drinking purposes

Question # 10

What is the cause of water pollution

Question # 11

Pollution is

Question # 12

The pH range of the acid rain is

Question # 13

Soil remediation means

Question # 14

Domestic waste mostly constitutes

Question # 15

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

Question # 16

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

Question # 17

Atmosphere of big/metropolitan cities is polluted most by

Question # 18

Shahi Qilla may be destroyed by

Question # 19

Ultraviolet radiation from sun causes a reaction that produces

Question # 20

Photochemical smog is caused by

Question # 21

Ozone hole is maximum over

Question # 22

Increased asthmatic attacks in certain seasons are related to

Question # 23

Water pollution is mainly due to

Question # 24

NO and NO2gases in atmosphere are represented by

Question # 25

Result of ozone hole is

Question # 26

Which causes water pollution?

Question # 27

In purification of potable water the coagulant used is

Question # 28

As it passes into food chain, the concentration of DDT

Question # 29

Atomospheric pollutant is

Question # 30

Most hazardous metal pollutant of automobile exhaust is

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ECAT Chemistry Chapter 27 Important MCQ's

Sr.# Question Answer
1 Result of ozone hole is
A. Green house effect
B. Global warming
C. Acid rain
D. UV rays reach the earth
2 The film forming components of paints are
A. Resins
B. Thinners
C. Pigments
D. Driers
3 Cyclone collector is used for minimizing
A. Radioactive pollution
B. Air pollution
C. Noise pollution
D. Water pollution
4 Soil remediation means
A. To make it suitable for cultivation of crops
B. To make it acidic
C. To make it alkeline
D. To add manure into it
5 Pollution is
A. Removal of top soill
B. Release of toxic/undesirable materials in enevironment
C. Conversation of energy
D. All the above
6 In purification of potable water the coagulant used is
A. Nickle sulpahte
B. Copper sulpahte
C. Barium sulpahte
D. Alum
7 Which causes water pollution?
A. Smoke/fly ash
B. Automobile exhausts
C. Aeroplnes
D. 2,4-D and pesticides
8 In incinerating the waste is burnt at
A. 1000°C
B. 100°C
C. 2000°C
D. 1500°C
9 To purify water which has mud dissolved in it, A substance which coagulates the suspended particles is used. The coagulant may be
A. Ag+
B. Cu2+
C. Al3+
D. Si4+
10 The largest item which is recycled is
A. Newspaper
B. Plastic
C. Aluminium
D. Oil

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