PHYSICAL PHARMACEUTICS II (BP403T) - Important Questions
? 7-Mark Frequently Asked Questions (28)
1. Define coacervation.
2. Classify colloids & discuss their general properties.
3. Kinetic and optical properties of colloids.
4. Protective action, peptization, Schulze-Hardy rule.
5. Electrical properties of colloids.
6. Applications of colloids in pharmacy.
7. Compare flocculated vs deflocculated suspension.
8. Define thixotropy / negative thixotropy / rheopexy.
9. Draw and explain rheogram of non-Newtonian systems.
10. Pseudo-plastic, dilatant, plastic flow (with examples).
11. Define and explain kinematic viscosity.
12. Heckel equation, stress-strain, plastic vs elastic.
13. Feret and Martin diameter.
14. Rotational viscometer principle.
15. Theories of emulsification (monomolecular, multimolecular, interfacial).
16. HLB value and emulsion formulation.
17. Microemulsions vs emulsions + advantages.
18. Instability in emulsions and preservation.
19. Stability of emulsions and factors affecting.
20. Sedimentation parameters of suspensions.
21. Mean particle size / particle size distribution.
22. Andreason Pipette method (labelled diagram).
23. Porosity, angle of repose, bulk vs true density.
24. Derived properties of powders (flow, density, bulkiness).
25. Zero and first order reactions, shelf-life, half-life.
26. Effect of temperature, dielectric constant on stability.
27. Photolytic degradation and its prevention.
28. Accelerated stability testing & expiry date.
? 7-Mark Frequently Asked Questions (28)
1. Define coacervation.
2. Classify colloids & discuss their general properties.
3. Kinetic and optical properties of colloids.
4. Protective action, peptization, Schulze-Hardy rule.
5. Electrical properties of colloids.
6. Applications of colloids in pharmacy.
7. Compare flocculated vs deflocculated suspension.
8. Define thixotropy / negative thixotropy / rheopexy.
9. Draw and explain rheogram of non-Newtonian systems.
10. Pseudo-plastic, dilatant, plastic flow (with examples).
11. Define and explain kinematic viscosity.
12. Heckel equation, stress-strain, plastic vs elastic.
13. Feret and Martin diameter.
14. Rotational viscometer principle.
15. Theories of emulsification (monomolecular, multimolecular, interfacial).
16. HLB value and emulsion formulation.
17. Microemulsions vs emulsions + advantages.
18. Instability in emulsions and preservation.
19. Stability of emulsions and factors affecting.
20. Sedimentation parameters of suspensions.
21. Mean particle size / particle size distribution.
22. Andreason Pipette method (labelled diagram).
23. Porosity, angle of repose, bulk vs true density.
24. Derived properties of powders (flow, density, bulkiness).
25. Zero and first order reactions, shelf-life, half-life.
26. Effect of temperature, dielectric constant on stability.
27. Photolytic degradation and its prevention.
28. Accelerated stability testing & expiry date.
