Environmental Chemistry UPSC Questions

Chemistry

Environmental Chemistry MCQ Questions


13.
What is the two Atmosphere pollution that is generally studied?
(i)Tropospheric and Stratospheric pollution
(ii)Nitrogen dioxide and Sulphur dioxide
A.
Option i
B.
Option ii
C.
Both
D.
None of these
😑 View Answer Rough Work Error
ANSWER :
A. Option i
14.
Which of the following present in the stratosphere prevents 99.5 per cent of the sun’s harmful Ultraviolet radiations from reaching the earth’s surface?
A.
Oxygen
B.
Exosphere
C.
Hydrogen
D.
Ozone
😑 View Answer Rough Work Error
ANSWER :
D. Ozone
15.
How much harmful UV radiation of ozone in the stratosphere reaches the Earth's surface?
A.
95%
B.
99.50%
C.
83%
D.
26%
😑 View Answer Rough Work Error
ANSWER :
B. 99.50%
16.
Tropospheric pollution occurs due to the presence of undesirable ____________ particles in the air.
A.
Solid or Gaseous
B.
Solid or Liquid
C.
Nitrogen or Hydrogen
D.
Physical or Chemical
😑 View Answer Rough Work Error
ANSWER :
A. Solid or Gaseous
17.
How many Gaseous are there in air pollutants ?
A.
Ten
B.
Five
C.
Six
D.
Twelve
😑 View Answer Rough Work Error
ANSWER :
C. Six
18.
What are the examples of Particulate pollutants:
(i)Dust
(ii)Mist
(iii)Ozone
(iv)Smoke
(v)Smog
A.
Options ii,iii,iv,v
B.
Options i,ii,iv,v
C.
Options ii,iv,v
D.
All of the Above
😑 View Answer Rough Work Error
ANSWER :
B. Options i,ii,iv,v