Annamalai University 2007 B.Sc Electronics APPLIED CHEMISTRY - I - Question Paper

Maximum : 100 Marks
ans ALL ques..
All ques. carry equal marks.
UNIT - I
1. (a) What is calorific value ? - discuss. (4)
(b) How is acetylene manufactured ? provide its
uses. (6)
(b) Distinguish primary and secondary
explosives. (6)
(c) discuss the manufacture and applications
of
(i) Picric acid.
(ii) TNT. (10)
(OR)
8. (a) elaborate the raw materials needed for
paper production ? (4)
(b) explain Nitroglycerine explosives. (6)
(c) How is card - board manufactured ? provide
its uses. (10)
UNIT - V
9. (a) Write a note on drying oil. (4)
(b) elaborate the various kinds of dyes ?
explain the basis for their classification.
(6)
(c) explain in detail the process of
.compounding of Rubber.. (10)
(OR)
(c) How will you estimate the hardness of
water using EDTA ? (10)
(OR)
2. (a) What is LPG ? provide its uses. (4)
(b) discuss the process of refining of crude
petroleum. (6)
(c) provide an account on the treatment of water
for industrial purposes. (10)
UNIT - II
3. (a) How are fertilizers classified ? (4)
(b) How is calcium cyanamide manufactured ?
provide its applications. (6)
(c) explain the role of nitrogen and potassium
in plant growth. explain their deficiency
symptoms in plants. (10)
(OR)
4. (a) provide the preparation and applications of
DDT. (4)
(b) How is superphosphate of lime
prepared ? (6)
(c) elaborate micronutrients ? provide a detailed
account of their role in plant growth.
(10)
UNIT - III
5. (a) elaborate soaps ? provide 2 examples.
(4)
(b) define the cleansing action of soaps.
(6)
(c) elaborate antibiotics ? provide an account of
penicillins. (10)
(OR)
6. (a) provide the advantages and disadvantages
of using penicillin. (4)
(b) Write a note on chloromycetein. (6)
(c) How are detergents manufactured ? discuss
in detail. (10)
UNIT - IV
7. (a) provide the preparation of sulphite pulp.
(4)
10. (a) Write a note on mordant dye. (4)
(b) provide the synthesis and uses of polyester.
(6)
(c) (i) Why is valcunisation of rubber
necessary ? How is it carried out ?
(ii) Write a note on Neoprene rubber.
(10)
10. (a) Write a note on mordant dye. (4)
(b) provide the synthesis and uses of polyester.
(6)
(c) (i) Why is valcunisation of rubber
necessary ? How is it carried out ?
(ii) Write a note on Neoprene rubber.
(10)
:

Earning:   Approval pending.