M.Sc. (Semester III) (CBCS) Examination Oct/Nov-2017
Inorganic Chemistry
ENVIRONMENTAL CHEMISTRY
Day Date: Saturday, 25-11-2017 Max. Marks: 70
Time: 02.30 PM to 05.00 PM
Instructions: Attempt in all five questions.
Section-I is compulsory.
Attempt any two questions from Section-II and any two questions from
Section -III.
Answer to all questions (Section II, and II)I should be written in one
answer book.
All question carry equal marks.
Figures to the right indicate full marks.
Use of log tables and calculators is allowed.
Section I
Q.1 Answer the following 14
What is smog?
What is the name of compound formed by microbial degradation of BHC?
What is the working principle of electrostatic precipitator?
Name the method used for monitoring of gaseous air pollutants.
Give the classification of air pollutants.
Define the term green house effect.
Which are the powerful germicides produced during chlorination method for
sterilization of water?
Why hardness of water is expressed in terms of CaCO3 equivalent?
What are the types of radioactive wastes?
A good quality of bleaching powder contains of chlorine?
What is BOD?
What is toxicology?
What are the fluoride compounds used for fluoridation of municipal water?
Mention some industries which are responsible for water pollution in India?
Section II
Q.2 Give an account of air pollution caused by various chemical industries
and its overall effects on environment.
07
Define radiation pollution. What do you mean by ionizing and nonionizing
radiations?
07
Q.3 Which compounds of mercury are highly toxic to human being? Write
their sources and explain the estimation procedure of organomercurials.
07
Give and explain the analytical techniques for pesticide residue analysis. 07
Q.4 Give the analysis of nitrate, nitrite and sulphate ions in water. 07
Discuss the advanced biological treatment methods for waste water. 07
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Section III
Q.5 Give the sources of pesticide residue in environment. 05
In what way acid rain affect the vegetation, plants aquatic ecosystem and
buildings?
05
Write the principle of cyclonic separator and draw a neat labeled diagram
of Ventury scrubber.
04
Q.6 Discuss the deterministion of dissolved oxygn by Winkler's method. 05
Describe the storage and disposal methods used for the radioactive
waster.
05
Give the methods of sampling for gaseous, liquid and solid pollutants. 04
Q.7 Write a notes (any three): 14
Coagulation and disinfection
Soil polution
Spectrophotometricaly analysis of SO2 air pollutants
Effects of water polluants on life and environment