Master of Science II (Analytical Chemistry)
Examination: Oct Nov 2016 Semester III (Old CGPA)
SLR No. Day
Date Time Subject Name Paper
No. Seat No.
SLR SD
260
Wednesday
23/11/2016
02.30 PM
to
05.00 PM
Analytical Spectroscopy
C
XII
Instructions: Attempt in all five questions.
Section-I is compulsory.
Attempt any two questions from Section II and any two
questions from Section III
Answers to all questions (Section II, III) should be written in
the one answer book.
All questions carry equal marks.
Figures to the right indicate full marks.
Use of log table and calculators in allowed.
Total Marks:70
SECTION I
Q.1 Answer the following 14
Which radiation source is commonly used in Raman spectroscopy?
In PAS which detectors are preferred?
Name the substance which is used as a standard in Mössbauer spectroscopy.
Which type of electron beam is used for image formation in TEM?
What is the difference between XPES and UPES?
List the techniques of SPM.
Define probe.
How many ESR lines would be possible for methyl radical?
"NQR is only applicable in solid state material". Why?
Write the equation for recoil energy in Mossbauer spectroscopy.
State principle of photoelectron spectroscopy.
Give the selection rule for rotational Raman spectra.
What is zero field splitting?
Calculate ESR frequency of unpaired electrons in a magnetic field at 3000 G.
SECTION II
Q.2 Discuss classical theory of Raman spectroscopy. 07
What are applications of NQR spectroscopy? 07
Q.3 Compare electron microscopy and electron spectroscopy. 07
What is the basic principle of ESR spectroscopy? Discuss hyperfine splitting
phenomenon with illustrative examples.
07
Q.4 What is ESCA? Discuss its instrumentation in details. 07
Outline principle and applications of Atomic Force microscopy. 07
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SECTION III
Q.5 Explain principle of NQR spectroscopy. Discuss the NQR spectrum for a
nucleus with I 5/2.
05
What are the applications of resonance Raman Effect? 05
Calculate the number of ESR peaks in 13CH3 radical and interpret their
intensity ratios.
04
Q.6 How NQR is used for studying molecular structure of a compound? 05
Draw neat labeled diagram of SEM. Explain its various components in detail. 05
Give the basic instrumentation used in Raman spectrometer. 04
Q.7 Write short notes on any THREE 14
Resonance Raman spectroscopy.
Instrumentation of PAS.
Scope and limitations of ESCA.
ESR spectroscopy for qualitative analysis.