Master of Science I (Chemistry)Examination: Oct/Nov 2016
Semester II (Old CGPA)
SLR No. Day
Date Time Subject Name Paper
No. Seat No.
SLR SD
173
Tuesday
22/11/2016
10.30 AM
to
01.00 PM
Physical Chemistry II
C
VII
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
Use of log table and calculators in allowed.
Total Marks:70
SECTION I
Q.1 Answer the following: 14
What is electrical double layer?
Mention different green house gases.
phenomenon represents radiation less transitions.
Intersystem crossing ii) Phosphorescence iii) Fluorescence
iv) Delayed Fluorescence
What is pseudo molecularity?
Mention different types of RNA.
What do you meant by hydrogen overvoltage?
Represent lead storage cell.
What do you mean by rate determining step of a chemical reaction?
Mathematically define ionic strength of the solution?
Define Zeta potential.
State Einstein's photochemical equivalence law.
Give steady state approximation.
Fluorescence intensity with rigidity in the structure.
increases ii) decreases iii) remains constant iv) none of these
Which materials can be used as a reference for determining quantum
efficiency?
SECTION II
Q.2 Illustrate Gouy-Chapmann electrical double layer model. 07
Discuss inter intra molecular excitation energy transfer process with
example.
07
Page 1 of 2
Q.3 Using SSA, discuss kinetics of thermal decomposition of ethane. 07
Using Franck-Condon principle, discuss shapes of absorption bands. 07
Q.4 Describe kinetics of bimolecular collisional quenching. 07
With the help of Jablonski's energy level diagram explain all possible
photophysical pathways with their typical lifetimes.
07
SECTION III
Q.5 Write on photo-oxidation reactions. 05
Explain green house effect. 05
Estimate the ionic strength of mixture of a solution containing 0.1m KI, 0.1m
K2S2O8 and 0.02m MgCl2.
04
Q.6 Describe the effect of ionic strength on the ionic reactions is solution state. 05
Illustrate bioenergetics of biochemical reactions. 05
Write on structures of proteins. 04
Q.7 Write a note on any three of the following: 14
Delayed fluorescence
Nucleic acids
Fractional order reaction kinetics
Different types of electronic transitions