Saurastra University 2006 M.Sc Computer Science Analytical Chemistry : - IX (Industrial Analysis) - Question Paper

M. Sc. (Part - II) exam
April / May – 2006
Analytical Chemistry : Paper - IX
(Industrial Analysis)
Time : three Hours] [Total Marks : 100
Instructions : (1) All ques. carry equal marks.
(2) Attempt any 5 ques..
(3) ques. No. one is compulsory.
(4) Attempt any 4 ques. from ques.
No. two to 7.
1 ans the subsequent : (any five)
(a) Differentiate detergent by DBDB and methylene blue test.
(b) elaborate pesticides? Classify them in detail with example.
(c) discuss the term pigment, binder, thinner, vehicle and
additives.
(d) How will you determine ash of petroleum oil?
(e) How will you analyse nitrogen in fertilizer by decrease iron
method?
(f) Briefly explain muta-rotation.
(g) How will you determine total sulphur in rubber?
(h) How will you detect NO2 group in chloramphenicol by
chromatographic technique?
2 ans the subsequent : (any three)
(a) What is cationic detergent? provide the qualitative and
quantitative analytical procedure for its determination.
(b) What is biodegradation of detergent? explain stepwise
degradation of it.
(c) describe anionic detergent. provide the qualitative and quantitative
analysis of it.
(d) describe the term detergent. Classify them with examples. provide
the mechanism of it. Briefly discuss the dermatologic effect
of it.
3 ans the subsequent : (any three)
(a) provide the synthesis and analytical procedure of DDT.
(b) What is organophosphorous compounds? Classify them as
pesticides. How will you analyse quinalphos?
(c) provide the principle of analytical procedure of the subsequent.
define the complete analytical procedure for any 1 :
(i) DDT
(ii) Phosphamidon
(iii) Carbaryl.
(d) elaborate the characteristics and pesticidal activity of halogen
derivatives of hydrocarbons? Briefly explain the analysis of
malathion.
4 ans the subsequent : (any three)
(a) Name the monomeric fractions of an alkyd resin. discuss the
analysis of any 2 fraction of it in detail.
(b) discuss the identification and separation of pigment from
paint. How will you analyse Ca and Zn in pigment?
(c) How will you identify and separate thinner portion of paint?
Classified the solvents used as thinner. How will you analyse
ester as thinner?
(d) elaborate drying oils? Classify them. How will you identify
them by chemical and physical method?
5 ans the subsequent any 3 :
(a) Mention the various parameter for the cement analysis.
provide the principle and method of analysis for free lime and
soluble silica.
(b) describe the term Portland cement. Classify them. How will you
analyse sulphurtrioxide in cement.
(c) How will you analyse R
2
O
3
in cement?
(d) elaborate petrochemicals? discuss the likeness and
differences ranging from (i) Cloud point and pour point (ii) Flash
point and boiling point.
ST-2742] two [Contd..
6 ans the subsequent : (any three)
(a) How will you analyse total phosphorous in fertilizers?
(b) How will you analyse potassium in fertilizers.
(c) What is antibiotics? How will you analyse pencillin?
(d) How will you analyse Vitamin C by titrametrically and
colorimetrically?
7 ans the subsequent : (any three)
(a) explain the qualitative procedure for the determination of
proteinaceous (gum) material in paper.
(b) How will you determine carbon black by condension method
in petroleum product?
(c) define the analytical procedure for hydrocarbon A and B
current in rubber.
(d) How will you analyse lead and sulphur in ash of rubber?
______________
ST-2742] three [ 100 ]

Earning:   Approval pending.