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: 80 Marks
Physical Pharmaceutics (Revised Scheme - 2)
Q.P. CODE: 1956
Your answers should be specific to the questions asked
Draw neat labeled diagrams wherever necessary
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LONG ESSAYS (Answer any Two) 2 x 10 = 20 Marks
- What is an Adsorption Isotherm? Mention its applications. State and explain Langmuir Adsorption Isotherm.
- List out the various methods to determine particle size. Explain in detail Coulter-Counter Apparatus.
- Define and Classify Complexes. Define Organic Molecular Complexes with suitable examples.
SHORT ESSAYS (Answer any Eight) 8 x 5 = 40 Marks
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- What is Fractional Distillation? Discuss the principle involved in this.
- Explain the methodology of Accelerated Stability Testing with suitable graphs.
- What is Contact Angle? Give its significance in wetting of solids with liquids with examples.
- Mention the factors effecting flow of powders. Name two agents used to improve flow properties.
- What are Buffers? Write a note on physiological and pharmaceutical buffers.
- What is Order of Reaction? Describe the various methods used to determine Order of Reaction.
- What are Colloids? Describe different methods of purification of colloids.
- What is Critical Solution Temperature? What is the effect of impurity on it?
- Define and classify Emulsions. Write a note on evaluation of emulsions.
- List the various apparatus used to determine Viscosity. Describe in detail Cone and Plate Method.
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SHORT ANSWERS 10 x 2 = 20 Marks
- Azeotropic Mixtures
- Pseudo Order Reaction
- Structured Vehicles
- Packing Arrangement of Powders
- Coacervation
- Dilatant Materials
- DLVO Theory
- Solubility Curves
- Protective Colloids
- BET Equation
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