Gujarat Technological University 2009-2nd Sem B.Pharm acy (Pharmachemistry-II) - Question Paper
GUJARAT TECHNOLOGICAL UNIVERSITY
B. Pharmacy Sem-II examination June 2009
Seat No. Enrolment No.
Subject code: 220003 Subject Name: Pharm Chemistry-II
Date:10/06/2009 Time: 11:30am-2:30pm
Total Marks: 80
Instructions:
1. Attempt any five questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
Q.1 (a)
(b)
(c)
Q.2 (a)
06
05
05
06
(b)
(c)
(a)
05
05
06
Q.3
(b)
(c)
(a)
(b) (c)
(a)
(b) (c)
(a)
(b)
05
05
06 05
05
06
05
05
06
05
Q.4
Q.5
Q. 6
(c)
05
Comments on the following
1. Dilution of H2SO4 with water is an endothermic reaction
2. Photochemical reaction follows second order kinetics
3. Liquification process depends on temperature and pressure both Derive reaction rate constant, half life and graph of first order reaction kinetics
Define Activation energy of a chemical reaction, how is it determined?
Differentiate between the following
1. Physical absorption Vs Chemisorption
2. Homo catalysis Vs hetero catalysis
3. Photochemical reaction Vs thermochemical reaction Write a note on Giger muller counter
Write applications of the radioactivity Explain any three terms
1. Degree of freedom 3. Colligative properties
2. Azeotropic mixture 4. Parachor
What is adsorption? Explain Langmuir adsorption isotherm Write application of adsorptions
Write briefly about various types of thermodynamic processes Define thermodynamics. Explain first law of thermodynamics Write in detail about enthalpy of the system & molar heat capacities Define quantum yield of a photochemical reactions giving reasons for high and low quantum yield
Write about beer-lamberts law for photochemical reaction Write about Debye-huckle theory
What is phase rule? Discuss water system with reference to phase rule
Define molarity & molality, Calculate the normality of a solution containing 25.2 g of oxalic acid crystals (Molecular weight: 126) dissolved in 500 ml of solution State and explain Henrys law
Q.7 (a) Write about various methods for the estimation of surface tension 06
(b) Write in detail about factors affecting viscosity 05
(c) Write a note on optical rotation 05
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