Kerala University 2009 M.Tech Civil Engineering Enviornment Engeenering Chemistry Solved Kerla University - Question Paper
Environment Chemistry Paper
Ill HI (Pages : 2) 3602
Reg. No. : ......................... Name : ..............................
First Semester M.Tech. Degree Examination, June 2009 Branch : Civil (2008 Scheme)
Environmental Engineering CEC 1001 : ENVIRONMENTAL CHEMISTRY
Time: 3 Hours Max. Marks: 100
Instruction : Answer all Parts.
PART - I
Answer any ten :
I. a) State Daltons law of partial pressures.
b) What is common ion effect ?
c) What is the principle behind solvent extraction ?
d) What is stability constant ?
e) What is Tyndall Effect ?
f) Define sol.
g) What is an isotope ? Give example.
h) What fraction of an initial amount of 14C left after one year ?
i) What is an enzyme ?
j) A sample of sludge has a total solids content of 3.42 percent. If the sludge specific gravity is 1.06, what is the total solids content in gm/litre ?
k) Differentiate aliphatic and aromatic compounds.
l) What are detergents ? Differentiate detergents and soaps.
m) What are are the different types of hardness ? (11/2x10=15 Marks )
PART - II
Answer any five questions :
II. a) What are the different types of adsorption ? Differentiate each. 17
b) Explain the importance of chemistry for Sanitary Engineers. 17
c) What is zeta potential ? Explain how it can be used to assess the effectiveness
of various coagulant strategies. 17
g) Briefly discribe the following with chemical equations :
1) Determination of hardness in water. 9
2) Principle of determination of D.O. 8
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