Download GTU B.Pharma 2019 Winter 4th Sem BP403TP Physical Pharmaceutics Ii Question Paper

Download GTU (Gujarat Technological University Ahmedabad) B.Pharma (Bachelor of Pharmacy) 2019 Winter 4th Sem BP403TP Physical Pharmaceutics Ii Previous Question Paper

Seat No.: _____ Enrolment No. _____________
GUJARAT TECHNOLOGICAL UNIVERSITY
B.PHARM - SEMESTER? 4 EXAMINATION ? WINTER -2019
Subject Code: BP403TP Date: 18-12-2019
Subject Name: Physical Pharmaceutics II
Time: 02:30 PM TO 05:30 PM
Total Marks: 80
Instructions:


1. Attempt any five questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.

Q.1 (a) Define Viscosity & explain its application. Discuss Ostwald's Viscometer
06

(b) Write a short note on optical properties of colloids.
05

(c) Define : i) lyophilic colloids,
05
ii) micelles,
iii) Brownian movement,
iv) Faraday-Tyndall effect
v) Nernst potential



Q.2 (a) Define : i) Kinematic viscosity
06
ii) Thixotropy
iii) Plug flow Rheology
iv) Yield value

(b) Classify cup and bob viscometer and give examples for each type with principle
05
involved

(c) Draw Rheogram for Newtonian and non-newtonian flow
05



Q.3 (a) Define suspension. Explain sedimentation volume and degree of flocculation
06

(b) Write a note on factor affecting stability of suspension
05

(c) Write a note on suspending agent.
05



Q.4 (a) Give a brief account on theories of emusification.
06

(b) Differentiate between lyophillic and lyophobic colloids.
05

(c) Write a note on physical stability of emulsion.
05



Q.5 (a) Derive equation of rate of reaction and half life for first order kinetics
06

(b) Discuss different methods to determine order of a reaction.
05

(c) Write a short note on second order reaction.
05



Q.6 (a) Enlist the methods for particle size determination. Explain conductivity method.
06

(b) Discuss the derived properties of powder.
05

(c) Discuss factors affecting powder flow.
05



Q.7 (a) Write note on Acid-base Enzyme Catalysis.
06

(b) Ennumarate Physical and chemical factors influencing the chemical degradation
05
of pharmaceutical product and explain any one.

(c) Expalin method for stabilization of medicinal agents from photolytic degradation 05
***************

---