Differentiate Lyophilic colloids and Lyophobic colloids. Discuss association colloids.
[6 marks]Explain the concept of DLVO theory along with energy curve and how this theory is applied in stabilizing the colloidal dispersion.
[5 marks]Enlist different properties of colloids. Explain kinetic properties.
[5 marks]Enumerate different methods commonly used for measurement of particle size determination. Describe optical microscopy method.
[6 marks]Classify the methods used for determination of surface area. Explain air permeability method with diagram.
[5 marks]Define and explain: Angle of repose and Carr’s Index with their pharmacopoeial specification.
[5 marks]Explain sedimentation parameters of suspension in detail.
[6 marks]Enlist the physical instability markers of emulsion and explain any two.
[5 marks]Discuss various mechanism of emulsifying agents.
[5 marks]Discuss accelerated stability testing in expiration dating of pharmaceutical dosage forms.
[6 marks]Derive the equation of Half life for zero order and first order kinetics.
[5 marks]Write about chemical factors influencing the chemical degradation of pharmaceutical product.
[5 marks]Explain the plastic and pseudoplastic flow curves with example.
[6 marks]Define: Kinematic viscosity, Fluidity, Bulges, Rheopexy and Poise.
[5 marks]Explain cup and bob viscometer with diagram. Q. 6 (a) Discuss porosity and packing arrangement of powder with application of micromeritics.
[6 marks]Describe different types of emulsion.
[5 marks]Define thixotropy. Comment on thixotropy and antithixotropy.
[5 marks]Enlist the different type of densities of powder. Write the experimental method for the determination of any one of them.
[6 marks]Define suspension. Write a note on factors affecting stability of suspension.
[6 marks]Write the principle and working of Ostwald viscometer.
[6 marks]