Master of Science II (Physical Chemistry)
Examination: Oct Nov 2016 Semester III (Old CGPA)
SLR No. Day
Date Time Subject Name Paper
No. Seat No.
SLR SD
238
Wednesday
23/11/2016
02.30 PM
to
05.00 PM
Solid State and Nuclear
Chemistry
C
XII
Instructions: Answer any five questions.
All questions carry equal marks.
Section-I is compulsory.
Attempt any two questions from Section II
Attempt any two questions from Section III
Draw neat and labeled diagrams wherever necessary.
Use of log table and calculators in allowed.
Total Marks:70
SECTION I
Q.1 Answer the following: 14
Give one example of phase transition reaction.
What do you meant by anisotropy?
Define miller indices.
What is detector dead time?
Which gases are used in nuclear gas detectors?
Thermal neutrons are neutrons
a. fast b. slow c. very fast d. none of these
What is artificial radioactivity?
What is F centre? Give one example.
Which materials are preferred as a coolant in nuclear reactors?
What is moderator? Name any two moderators.
Bragg's equation
State the law of constancy of interfacial angle.
Name any two methods of single crystal growth from melt.
What is Schottky defect?
SECTION II
Q.2 What is single crystal? Explain its growth from solution? 07
Give an account of radiolysis of water. 07
Q.3 Mention different types of nuclear reactors. Comment on critical size of
thermal reactor.
07
Discuss in detail how nuclear radiations interact with the matter. 07
Q.4 Illustrate Bragg's X-ray powder diffraction method. 07
Describe zone refining method of purification. 07
Page 1 of 2
SECTION -II
Q.5 Write a note on Geiger-Muller counters. 05
Comment on Wagner's theory of solid state reactions. 05
Explain different plane defects encountered in solids. 04
Q.6 Discuss in brief different factors affecting reactivity of solid state reactions. 05
Write on India's nuclear power programme. 05
Mention different line defects. Explain screw dislocations. 04
Q.7 Write a note on any three of the following: 14
Structure determination by electron density map
Solid state nuclear track detectors (SSNTD)
Nuclear fuels
Bravis lattice
Page 2 of 2
Master of Science II (Physical Chemistry)
Examination: Oct Nov 2016 Semester III (New CBCS)
SLR No. Day
Date Time Subject Name Paper
No. Seat No.
SLR SD
241
Wednesday
16/11/2016
2:30 P.M
to
5:00 P.M
Quantum Chemistry
C
IX
Instructions: Answer any five questions.
All questions carry equal marks.
(Section-I) Q.1 is compulsory.
Attempt any two questions from Section II
Attempt any two questions from Section III
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
State Stefan-Boltzmann law. Give the significance of the terms involved in it.
What do you mean by overlap integral?
Let Â=d/dx and Evaluate the commutator
What are the factors on which the Compton shift depends?
Give the statement for Heisenberg's uncertainty principle.
Construct the secular determinant for ethylene molecule.
Prove that A sin x B cos x is a solution to the differential equation
0
What is the expression for kinetic energy operator in one dimension?
Photoelectric effect shows nature of light. [corpuscular/wave]
The number of nodes possible in radial wavefunction of 4p orbital is
Give mathematical expression for charge density.
Put the condition for orthogonalization.
Perform the operation Â(sin2x) where Â=d2/dx2
Give the expression for zero point energy for a particle in three dimensional
box.
SECTION II
Q.2 Show that Hermite's differential equations can be solved by recursion
formula.
07
Derive the expression for schrődinger equation for particle in cubical box. 07
Q.3 Using Hükel Molecular Orbital Theory, evaluate the molecular orbital
coefficients for wave functions of allyl molecule.
07
Explain Planck's distribution for black body radiation using quantum
hypothesis.
07
Q.4 Prove that a trail functions that depends linearly on the variation parameters
leads to a secular determinant.
07
Derive the expression for time independent Schrodinger wave equation. 07
SECTION -III
Q.5 Derive the expression for momentum operator for one and three dimension. 05
Explain Slater and Gaussian type orbitals. 05
If the position of the electron in an atom could be determined with an
accuracy of 0.1Å, what would be the uncertainly in its velocity? Comment on
the result obtained.
04
Q.6 Discuss radial plots 1=0 and fox 1 0. 05
Show that sin is an eigen function of kinetic energy
operator. Find out eigen value.
05
Show that the average position of the particle lies in the middle of the
box.
04
Q.7 Write a note on any three of the following: 14
de Broglie hypothesis
SCF theory
Assumptions of HMO Theory
Properties of Hermitian operators