M.Sc. DEGREE EXAMINATION, APRIL 2017
Second Semester
Energy Science
ADVANCED INSTRUMENTAL METHODS OF ANALYSIS
(2016 onwards)
Time 3 Hours Maximum 75 Marks
Part A (10 x 2 20)
Answer all the questions.
1. What is the principle of atomic spectroscopy?
2. Mention the types of flames uses in atomic spectroscopy.
3. Define Beer-Lambert's law.
4. What is meant by Doppler broadening?
5. Define limiting potential
6. What are the advantages of coulometric titration over
volumetric titrations?
7. Define binding energy.
8. What determines the position and intensity of the XRD
peaks?
9. Define procedural decomposition temperature.
10. Distinguish between TG and DTA.
Sub. Code
540203
RW-100
2
Wk 14
Part B x 5 25)
Answer all the questions choosing either or
11. List out the strength and limitations of atomic
absorption spectroscopy.
Or
Explain the instrumentation of atomic fluorescence
spectroscopy.
12. Define Beer-Lambert's law. Discuss the principle of
of UV-Vis spectroscopy.
Or
Write a note on SERS.
13. Discuss the principle of potentiometry.
Or
Describe exactly what experiments you would do in
cyclic voltammetry what data you would
collect, and how to analyze the data to distinguish
between a reversible and irreversible
electrochemical reaction.
14. Define core electrons and auger electrons. How are
they produced?
Or
Describe the principle of scanning tunnelling
microscopy (STM).
15. Explain the factors affecting the TG and DTA
curves.
Or
Discuss the instrumentation of DSC technique.
RW-100
3
Wk 14
Part C x 10 30)
Answer any three questions.
16. List out the similarities and differences of X-ray
absorption and fluorescence methods.
Discuss the applications of atomic fluorescence
spectroscopy.
17. Discuss the principle, instrumentation and applications
of Raman spectroscopy.
18. Explain the three electrode system in electro
analytical experiments.
Write a note on Electrochemical Impedance
spectroscopy.
19. What is EDAX? Give their applications. How do
they differ from XRD technique?
Discuss the principle and applications of XPS.
20. Describe, with examples, the various types of curves
obtained from thermogravimetric experiments,
and discuss their interpretation.
Discuss the principle of DTA technique.
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