Madurai Kamraj University (MKU) 2005 B.Sc Nutrition and Dietetics III – PHYSICAL AND INORGANIC CHEMISTRY - Question Paper

6028/AYG NOVEMBER 2005

Paper III – PHYSICAL AND INORGANIC CHEMISTRY

Time: 3 hours Maximum :50 marks

ans ALL ques..

part A –(4*2=8 marks)

1.Define:
(a) Order
(b) Molecularity
2.Explain photosensitized reactions with a suitable example
3.Calculate EAN of Co in [ CoIII (NH3)6] Cl3 (Atomic Number of Co: 27)

4.What is “green house effect”?

part B—(4*4=16 MARKS)

5.(a) Distinguish ranging from physical adsorption and chemical adsorption.
Or
(b) discuss the phenomenon of paper chromatography ? State its used.
6.(a) Define: Quantum field. discuss why in a few reactions the quantum yield is less than expected.
Or
(b)Explain addition polymerization and condensation polymerisation reactions with suitable example.

7.(a) How V.B theory explains the structure and magnetic properties of Nickel tetra Carbonyl?
Or
(b) Outline the principles involved in the manufacture of ammonia by Haber’s process
8.(a) What is acid rain? How is it formed? How it can be controlled?
Or
(b) elaborate the sources of radio active radiations that pollute atmosphere?

part C—(4*6.5 = 26 MARKS)

9.(a) What is adsorption? Write a note on Langmuir isotherm adsorption of gases on solid surface.
Or
(b) Derive an expression for the rate constant of a 1st order reaction. Show that rate constant of half life period of a 1st order reaction is ndependent of initial concentration of the reactants.

10.(a) discuss the subsequent with a suitable example:
(i)Auto catalyst

(ii) Catalytic poison
(iii) Promotors.

Or
(b) elaborate number avg. molecular mass and weight avg. molecular mass of a polymer? How moleculat height of a polymer is determined by viscosity method.

11.(a)Describe theWerner’s Theory of coordination compounds.
Or
(b) Outline the Ostwald method of manufacture of nitric acid.

12. (a) Write a note on sources of air pollution and the ways of controlling air pollution.
Or
(b)(i) define the different methods of controlling water pollution.
(ii) How CFC reacts with Ozone

Earning:   Approval pending.