Master of Science II (Inorganic Chemistry)
Examination: Oct Nov 2016 Semester III (Old CGPA)
SLR No. Day
Date Time Subject Name Paper No. Seat No.
SLR SD
277
Wednesday
16/11/2016
02:30 P.M
to
05:00 P.M
Inorganic Chemical
Spectroscopy
C
IX
Instructions: Attempt in all five questions.
Section I is compulsory.
Attempt any two questions from Section II and any two questions
from Section III
Answer to all questions should be written in same answer book.
All questions carry equal marks.
Figures to right indicate full marks.
Neat and labeled diagrams should be drawn wherever possible.
Use of log table and calculators in allowed.
Total Marks:70
SECTION I
Q.1 Answer the following: 14
Broad signals are often observed in the PNMR spectra associated with OH
resonance. Why?
How many signals would you expect in the NMR spectrum of neopentane

How many moments of inertia are present in symmetric top molecule?
Which types of transitions are permitted in microwave spectroscopy?
What is the most important advantage of PAS?
On which variables the intensity of AES peaks depends?
What is Raman Effect?
Which vibrational mode is Raman active in CO2 molecule?
What is the selection rule for vibration-rotation transition?
In tetrahedral where M-C stretching mode is assigned?
Express the quantity l and L.
What is the relation between Racah parameters with Slater-Condom-Shortly
parameters?
In CH4 molecule how many C3 axes are present?
By which symbols molecular point groups are represented?
SECTION II
Q.2 Discuss the principle and instrumentation of auger electron spectroscopy. 07
What is spin-spin coupling? Discuss the applications of spin-spin coupling to
structural determination.
07
Q.3 Describe nuclear and electron spin interactions with suitable examples. 07
Discuss the applications of Raman and IR selection rules in the determination of
structure of inorganic compounds.
07
Q.4 What is Tanage-Sugano diagram? Discuss it for d6 octahedral complex. 07
What are symmetry points? Discuss the classification of point groups. 07
SECTION III
Q.5 Give the importance of orthogonality theorem. 05
Suppose two separated atoms N and H combine to form a molecule NH. Find out
the electronic state of the molecule.
05
Discuss the classical theory of Raman spectra. 04
Q.6 What is character table? Prepare character table for C2v point group. 05
Explain the following LMCT energy order.
K2CrO4 K2MoO4 K2WO4
05
Explain nuclear relaxation. 04
Q.7 Write a note on any three of the following: 14
Symmetry aspects of molecular orbitals.
Polarized absorption spectra.
Classification of rotors.
Applications of photo electron spectroscopy