Madurai Kamraj University (MKU) 2006 M.Sc Chemistry ", 4 - ANALYTICAL " - Question Paper
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It's For "M.SC IN IN CHEMISTRY-MAY 2006 examination ques. Papers ", It'a Course in "Madurai Kamaraj University" or %MK University% in Distance Education Mode
The paper Name Is "M.SC CHEMISTRY,PAPER four - ANALYTICAL CHEMISTRY"
This ques. Paper is applicable for those who joined on or after MAY 2006 .
MAY 2006
(6 pages)
5554/MC4
Paper IV ANALYTICAL CHEMISTRY
(i) Double irradiation technique.
(ii) Broad band decoupling technique,
(iii) Off resonance decoupling technique,
MAY 2006
(6 pages)
5554/MC4
(3+3+4)
UNIT II
4. (a) Differentiate circular biretringence and circular dichroism. (2)
(b) Name the commonly used adsorbents in column, chromatography. What criteria is followed for its choice? (2)
5. (a) Give the schematic diagram of a GLC apparatus and the sequence of processes involved in separation. (6)
Or
(b) Explain the importance of isotopic abundance in Mass Spectra. (6)
6. (a) (i) Describe the main factors involved in adsorption chromatography. (5)
(ii) What is meant by fragmentation? Describe the fragmentation in alkylbenzenes. (5)
Or
2
(b) {i) Illustrate octant rule with 3-methylcyclohexanone. (5)
(ii) With suitable examples discuss Me Lafferty rearrangement. (5)
UNIT III
7. (a) Explain the term kinetic current in polarography. (2)
(b) What are the advantages of potentiometric acid-base titrimetry? (2)
8. (a) What is meant by diffusion current? Discuss the factors influencing it. (6)
Or
(b) Write a note on theories of hydrogen overvoltage (6)
9. (a) (i) Give a brief account of cyclic voltammetry, (5)
(ii) How are amperometric titrations carried out? What are the advantages and disadvantages of amperometric titrations? (5)
Or
(b) Ci) Explain the construction and working of calomel electrode. (5)
(ii) Give a concise account of liquid membrane electrodes. (5)
UNIT IV
10. (a) Explain the difference between variance and standard deviation. (2)
(b) Mention any two methods of selecting a cell.
MAY 2006
(6 pages)
5554/MC4
(2)
11. (a) Differentiate the following :
(i) Accuracy and precision.
(ii) Mean and Median.
MAY 2006
(6 pages)
5554/MC4
(iii) Absolute error and relative error, (3 x 2)
Or
(b) Write a program using FOR...NEXT loop to calculate the molecular formula of given ten compounds containing carbon, hydrogen and oxygen. (6)
12. (a) (i) Write a note on matrix operation in BASIC. (5)
(ii) Compare functions and subroutine with example for each. (5)
Or
MAY 2006
(6 pages)
5554/MC4
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MAY 2006
(6 pages)
5554/MC4
[P.T.OJ
(b) (i) What are the criteria for the rejection of analytical data? (4)
(ii) Write a short note on significant figures. (6)
UNITV
13. (a) What is DTA? How is the thermogram got in DTA? (2)
(b) Explain the basic principle of electrodialysis.
MAY 2006
(6 pages)
5554/MC4
(2)
14. (a) Discuss the complimentary nature of TGA and DTA with any three suitable examples. (6)
Or
(b) What are the sources of NOx pollution? How are they controlled? (6)
15. (a) (i) Explain the use of IR in environmental pollution studies. (6)
MAY 2006
(6 pages)
5554/MC4
(ii) How is dissolved oxygen determined?(4)
Or
(b) (i) How is iron determined col o urim e tri c ally ? (4)
(ii) How is trace of lead in a ferrous alloy determined by atomic absorption spectroscopy? (6)
6 5554/MC4
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