LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034
B.Sc. DEGREE EXAMINATION – MATHEMATICS & PHYSICS
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FOURTH & THIRD SEMESTER – APRIL 2007
CH 4200 / 3200- GENERAL CHEMISTRY FOR PHYSICS & MATHS
Date & Time: 26/04/2007 / 9:00 – 12:00 Dept. No. Max. : 100 Marks
PART- A (10×2=20)
Answer ALL the questions.
- What are heterocyclic compounds? Give an example.
- State and explain Hess’s law.
- How will you synthesis pyrrole from furan?
- What are azo dyes? Give an example.
- Give the structure and uses of 2, 4, D.
- What are oligosaccharides? How they are classified?
- Differentiate intensive and extensive properties with example.
- Define first law of thermodynamics.
- What are peptides? Give the structure and name of any one dipeptide.
- Write a short note on antipyretics with an example.
PART- B (8×5=40)
Answer any EIGHT questions.
- Discuss the different types of hydrogen bonding with suitable examples.
- Explain the Haworth synthesis of naphthalene.
- Give a method of preparation and uses of malachite green.
- Derive Kirchoff’s equation.
- Explain the cyclic structure of glucose.
- How will you synthesize glycine by Gabriel phthalimide synthesis?
- Explain the manufacture of the following.
- a) Super phosphate of lime b) Urea
- What is nuclear fission reaction? Explain its importance.
- Explain the secondary structure of proteins.
- a) Define octane number.
- b) Give the preparation and uses of DDT.
- Draw and explain standard hydrogen electrode.
- Discuss the role of macronutrients and micronutrients.
PART- C (4×10=40)
Answer any FOUR questions.
- a) Explain the theory of hydrogen bonding. (4)
- b) Discuss the separation of lanthanides by ion exchange method. (6)
- a) Write short notes on antibiotics. Give the structure of penicillin. (5)
- b) How will you prepare sulphanilimide? Give its uses. (5)
- a) Discuss any three factors influencing the activity of enzymes? (6)
- b) Explain Sanger’s method for the determination of N- terminal
analysis of aminoacids. (4)
- Discuss the different types of conductometric titrations. (10)
- a) Write a note on chromophore and auxochrome with examples. (5)
- b) How is thiophene synthesized? Describe any one reaction. (5)
- Draw Born-Haber cycle and explain the calculation of lattice energy. (10)
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