LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034
B.Sc. DEGREE EXAMINATION – PHYSICS & MATHEMATICS
SUPPLEMENTARY EXAMINATION – JUNE 2009
CH 3202 / 3200 - ADV. GENERAL CHEMISTRY FOR PHYS.& MATHS
Date & Time: 29/06/2009 / 10:00 - 1:00 Dept. No.
Answer ALL the questions:
Max. : 100 Marks
PART-A
(10x2=20marks)
1. Why ice floats on water?
2. Define ionic radius.
3. Draw the structures of glucose and fructose.
4. What is meant by isoelectric point of aminoacids?
5. Define octane number of a fuel.
6. Mention the compositon and uses of Bordeaux mixture.
7. State the first law of thermodynamics.
8. Mention any two uses of Ibuprofen
9. State Kohlrauschs law.
10.Give a method of preparation of pyrrole
PART-B
Answer any EIGHT questions:
(8x5=40marks)
11. How will you extract lanthanides by ion-exchange method?
12. Explain the types of hydrogen bonding with suitable examples.
13. Discuss any two factors affecting enzyme reactions.
14. Explain how radioisotopes are applied in medicine and agriculture.
15. a) Chlorophyll acts as a photosensitiser in photosynthesis.- Justify. (2)
b) How will you analyse the C-terminal aminoacid of protein by using carboxypeptidase?
16. What are renewable and non renewable sources of energy? Give examples.
17. Discuss the classification of dyes based on the structure
18. Derive Kirchoff’s equation.
19. Give a method of preparation and uses of sulphanilamide
20. How is the solubility of sparingly soluble salt determined?
21. How are the following prepared? Give equations.
(i)Congored (ii) Malachite green
22. Define lattice energy. What are the factors affecting it?
PART-C
Answer any FOUR questions:
(4x10=40marks)
23. a) Discuss the dipole interaction theory of hydrogen bonding. (6)
b) Write a note on lanthanide contraction. (4)
24. How will you manufacture the following. Give equations:
a) 2,4-D
(b) DDT (c) Superphosphate of lime (4+3+3)
25. Discuss the primary and secondary structures of protein.
26. a)Give a synthetic method of preparation and uses of asprin (5)
b)How is naphthalene prepared by Haworth synthesis (5)
27. Explain conductometric titration of strong acid against a strong base and weak acid
against weak base
28. a) Explain the working principle of the primary electrode using oxidation and
reduction potential with an example (7)
b) State Hess’s law of heat of summation. (3)
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