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Seat No.: Enrolment No.
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GUJARAT TECHNOLOGICAL UNIVERSITY
B.PHARM - SEMESTER - 2- EXAMINATION -WINTER - 2018
Subject Code:2220002 Date: 13/12/2018
Subject Name: Pharmaceutical Chemistry-II (Physical Chemistry)
Time:02:30 PM TO 05:30 PM Total Marks: 80
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Instructions:
- Attempt any five questions.
- Make Suitable assumptions wherever necessary.
- Figures to the right indicate full marks.
Q.1
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(a) What is Refractive Index? Give its importance in Pharmacy. Enlist the factors affecting refractive index. 06
(b) Define: Viscosity and fluidity. Describe principle of Ostwald’s viscometer. 05
(c) Discuss the measurement of surface tension by drop formation method. 05
Q.2
(a) Define: Fluorescence, Phosphorescence and Chemiluminescence. 06
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(b) Draw a Jablonski diagram & explain consequences of Light absorption. 05
(c) Define: photochemistry. Explain Lambert — Beer law. 05
Q.3
(a) Explain in detail Debye-Huckel theory. 06
(b) Define & Enlist Colligative Properties. Explain any two in detail. 05
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(c) Define: Molarity and Normality. Explain Henry’s law in brief. 05
Q.4
(a) State & explain first law of Thermodynamics with various modifications. 06
(b) Enlist various methods for the determination of order of reaction. 05
(c) Define enthalpy. How enthalpy of a chemical reaction can be calculated? 05
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Q.5
(a) Differentiate between: (1) Adsorption and Absorption 06
(ii) Physical adsorption and Chemical adsorption.
(b) Explain in detail Langmuir Adsorption isotherms. 05
(c) Discuss applications of adsorption in pharmacy. 05
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Q.6
(a) State and explain phase rule. Describe phase diagram of water. 06
(b) Derive Reaction rate constant & half-life for first order reaction kinetics. 05
(c) Write a note on “The Carnot Cycle”. 05
Q.7
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(a) State and explain Raoult’s law of dilute solution. Discuss deviation of real solution from the Law. 06
(b) Write a note on Parachlor. 05
(c) Discuss Acid-base Enzyme Catalysis in detail. 05
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