Exam Details
| Subject | physical chemistry – ii | |
| Paper | ||
| Exam / Course | m.sc. chemistry | |
| Department | ||
| Organization | solapur university | |
| Position | ||
| Exam Date | December, 2018 | |
| City, State | maharashtra, solapur |
Question Paper
M.Sc. (Semester II) (CBCS) Examination Nov/Dec-2018
Chemistry
PHYSICAL CHEMISTRY II
Time: 2½ Hours
Max. Marks: 70
Instructions: Attempt in all five questions. Section I is compulsory Attempt any two questions from section II and section III. Answer to all questions (Section II and III) should be written in the same answer book. All questions carry equal mark. Figures to right indicate full marks. Use of log table calculator is allowed.
Section I
Q.1
Answer the following:
14
Mention various theories of electrical double layer.
Ozone layer acts like Earth's protective umbrella. Why?
What is meant by quantum efficiency?
Define ionic strength of a solution?
Biological energy transformations obey the laws of thermodymanics. True or False.
Give the mathematical expression for Debye- Huckel limiting law.
Mention various electrokinetic effects.
What is concentration quenching?
Mention different denaturing agents of proteins.
Large energy separation between singlet and triplet states favours fluorescence. True/ False.
Calculate the energy in joule of one photon of light of wavelength 480 nm.
What do you mean by complex reactions
Electron withdrawing groups fluorescence intensity.
Increases
Decreases
Enhances
Does not effect
Give the statement of Franck-Condon principle.
Section II
Q.2
Discuss electrical double layer and its structure.
07
Derive the expression for Stern-Volmer equation on the basis of collisional quenching kinetics.
07
Q.3
Using steady state approximation, discuss kinetics of ozone decomposition reaction.
07
With potential energy verses internuclear separation plots, explain internuclear configuration and shapes of absorption bands.
07
Q.4
Illustrate using double sphere model the influence of dielectric constant on rate of Ionic reactions.
07
With suitable example describe electronic energy transfer mechanism.
07
Page 2 of 2
SLR-VF-124
Section III
Q.5
Using Jablonski diagram, explain non-radiative photophysical pathways.
05
What do you mean by excimer? Give the characteristics of excimer emission.
05
Calculate the ionic strength of mixture of a solution containing 0.1 m KI, 0.1 m K2S2O8 and 0.4 m KCl.
04
Q.6
Describe green house effect.
05
Discuss the role of ATP in biological systems.
05
Differentiate between DNA and RNA
04
Q.7
Write a note on any Three of the following.
14
Laws of photochemistry
Denaturation of proteins
Rate determining step
Different types of electronic transitions in organic molecules.
Chemistry
PHYSICAL CHEMISTRY II
Time: 2½ Hours
Max. Marks: 70
Instructions: Attempt in all five questions. Section I is compulsory Attempt any two questions from section II and section III. Answer to all questions (Section II and III) should be written in the same answer book. All questions carry equal mark. Figures to right indicate full marks. Use of log table calculator is allowed.
Section I
Q.1
Answer the following:
14
Mention various theories of electrical double layer.
Ozone layer acts like Earth's protective umbrella. Why?
What is meant by quantum efficiency?
Define ionic strength of a solution?
Biological energy transformations obey the laws of thermodymanics. True or False.
Give the mathematical expression for Debye- Huckel limiting law.
Mention various electrokinetic effects.
What is concentration quenching?
Mention different denaturing agents of proteins.
Large energy separation between singlet and triplet states favours fluorescence. True/ False.
Calculate the energy in joule of one photon of light of wavelength 480 nm.
What do you mean by complex reactions
Electron withdrawing groups fluorescence intensity.
Increases
Decreases
Enhances
Does not effect
Give the statement of Franck-Condon principle.
Section II
Q.2
Discuss electrical double layer and its structure.
07
Derive the expression for Stern-Volmer equation on the basis of collisional quenching kinetics.
07
Q.3
Using steady state approximation, discuss kinetics of ozone decomposition reaction.
07
With potential energy verses internuclear separation plots, explain internuclear configuration and shapes of absorption bands.
07
Q.4
Illustrate using double sphere model the influence of dielectric constant on rate of Ionic reactions.
07
With suitable example describe electronic energy transfer mechanism.
07
Page 2 of 2
SLR-VF-124
Section III
Q.5
Using Jablonski diagram, explain non-radiative photophysical pathways.
05
What do you mean by excimer? Give the characteristics of excimer emission.
05
Calculate the ionic strength of mixture of a solution containing 0.1 m KI, 0.1 m K2S2O8 and 0.4 m KCl.
04
Q.6
Describe green house effect.
05
Discuss the role of ATP in biological systems.
05
Differentiate between DNA and RNA
04
Q.7
Write a note on any Three of the following.
14
Laws of photochemistry
Denaturation of proteins
Rate determining step
Different types of electronic transitions in organic molecules.
Other Question Papers
Subjects
- advanced organic chemistry – i
- advanced organic chemistry – ii
- advanced spectroscopic methods
- analytical chemistry – i
- applied organic chemistry
- chemistry of natural products
- inorganic chemistry – i
- inorganic chemistry – ii
- instrumental methods of analysis (oet)
- organic chemistry – i
- organic chemistry – ii
- photochemistry and pericyclic reactions
- physical chemistry – i
- physical chemistry – ii
- stereochemistry