Download JNTUK B.Pharm 2-1 2019 PHR16213 Physical Pharmacy Ii Question Paper

Code No: PHR16213

R16

II B. Pharmacy I Semester Supplementary Examinations, May - 2019

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PHYSICAL PHARMACY-II

Time: 3 hours

Max. Marks: 70

Note: 1. Question paper consists of two parts (Part-A and Part-B)

2. Answering the question in Part-A is Compulsory

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3. Answer any FOUR Questions from Part-B

PART –A

1. a) Define bulk density and give its significance. (2M)
2. b) Differentiate flocculated and deflocculated suspensions. (2M)
3. c) Derive a linear expression for first order reaction. (2M)

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4. d) Define the following: (2M)
   1. (a) Gold number
   2. (b) Zeta potential
5. e) Discuss about HLB scale. (2M)
6. f) Write about dilatant flow of liquid. (2M)

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7. g) Discuss about pseudo zero order reaction with examples. (2M)

PART-B

2. a) Describe various methods for determination of order of reaction. (9M)
3. b) Discuss about effect of temperature on rate of reaction. (5M)

3. a) Discuss about theories of emulsification. (7M)

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4. b) Discuss about physical stability of suspensions. (7M)

4. a) What is thixotropy and discuss the determination methods of thixotropy. (10M)
5. b) Discuss about sensitization and protective action of hydrophilic colloids on hydrophobic colloids. (4M)

5. a) Define true volume and true density and describe the principle and method for determination of true density. (10M)
6. b) Write a note on %compressibility index. (4M)

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6. a) Compare and contrast various types of colloidal systems. (7M)
7. b) Discuss about Donnan membrane equilibrium. (7M)

7. a) Discuss about various types of adsorption isotherms. (10M)
8. b) Write a note on spreading coefficient. (4M)

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