Rajiv Gandhi University of Health Sciences, Karnataka
I Year B.Pharm Degree Examination — 03-Jan-2020
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Time: Three Hours Max. Marks: 70 Marks
PHYSICAL PHARMACEUTICS
(Revised Scheme 3)
Q.P. CODE: 2606
Your answers should be specific to the questions asked
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Draw neat labeled diagrams wherever necessary
LONG ESSAYS (Answer any Two) 2 x 10 = 20 Marks
- Define Thixotropy. Draw thixotropic curves. How the extent of thixotropic breakdown can be measured?
- Enumerate the derived properties of powders. How they are evaluated?
- Discuss the influence of temperature on the rate of a chemical reaction. How the shelf life of a drug formulation can be arrived at with the principles of chemical kinetics?
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SHORT ESSAYS (Answer any Six) 6 x 5 = 30 Marks
- Write on Purification of hydrophobic colloidal dispersions.
- Explain what do you mean by sedimentation parameters.
- State Nernst Distribution Law and mention three application of knowing partition coefficient values.
- What is steady state diffusion? Explain.
- What is an adsorption isotherm? Write on Freundlich adsorption isotherm.
- Write on interfacial film theory to account for the stability of emulsions.
- Write on any two methods for the analysis of a complex.
- Define critical solution temperature. Draw CST diagram for Phenol-Water, Triethylamine-Water, Nicotine Water systems.
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SHORT ANSWERS 10 x 2 = 20 Marks
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- Define Hydrophile-Lipophile balance number.
- How is Sorensen’s pH scale constructed?
- Define stokes diameter and surface diameter.
- Define Poise unit.
- What is Plug flow? How it can be over come?
- Two approaches for Protection against hydrolysis.
- What are micro emulsions?
- What is micellar solubilization?
- What are units for k in case of a zero-order reaction?
- How hydrophobic colloids are stabilized?
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This download link is referred from the post: RGUHS B.Pharm 2nd Year 2020 Previous Question Papers - Rajiv Gandhi University of Health Sciences
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