DISTANCE EDUCATION
M.Sc. (Chemistry) DEGREE EXAMINATION, MAY 2016.
INSTRUMENTAL METHODS OF ANALYSIS
(2008 onwards)
Time Three hours Maximum 100 marks
Answer any FIVE questions.
Each question carries 20 marks.
20 100)
1. How is the vibrational frequency useful in the
elucidation of hydrogen bonding in a molecule?
State and explain the selection rules of UV-visible
spectroscopy.
Discuss in detail the various factors affecting the
position and intensity of absorption bands.
2. What are shift reagents? Explain their importance
with suitable examples.
Discuss the various factors which affect the value
in ESR spectroscopy.
Explain briefly the applications of 13C NMR with
suitable examples.
Sub. Code
14
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3. Explain the principle and instrumentation of mass
spectroscopy.
What is octant rule? Explain briefly its applications
in the determination of conformation and
configuration.
Discuss in detail the basic principle and
applications of Gas chromatographic technique.
4. What is nephelometry? Explain its principle and
applications. How does it differ from turbidimetry?

What is DTA? Explain its principle and applications
with suitable examples.
What are thermometric titrations? Explain.
5. Explain the following:
Q-test
Null hypothesis
Student's t-test.
What are amperometric titrations? Explain them
briefly.
State the principle of electrogravimetry.
6. State and explain the basic principle,
instrumentation and applications of stripping
voltammetric analysis.
What is cotton effect? Explain briefly its
applications.
What are ORD and CD curves?
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7. Explain briefly the principle and applications of
flame photometry.
State and explain the basic principle and
applications of colorimetry.
Write a note on linear regression analysis.
8. Calculate the values of the following using
Woodward Fieser rule.




Explain briefly the basic principle, instrumentation
and applications of polarography.
State and explain the 'Nitrogen rule'.