Gujarat Technological University 2010 B.Pharm Physical Pharmacy - Question Paper

Q.1 (a) describe Suspensions and differentiate ranging from flocculated and
deflocculated suspensions.
04
(b) discuss the theory behind Stability of Emulsions. 06
(c) discuss any two kinetic properties of Colloids. 06
Q.2 (a) describe Viscosity. Classify viscosity with suitable examples. 04
(b) discuss Non Newtonian fluids with examples. 06
(c) E x p l a i n a n y 1 single point and multipoint viscometer with
advantages and disadvantages.
06
Q.3 (a) discuss any 2 binding forces ranging from molecules. 04
(b) define in brief Phase rule with an example for 1 component
system and 2 component system.
06
(c) discuss two component system in liquid phases with suitable examples
for UCT and LCT and eutectic mixtures.
06
Q.4 (a) describe Micromeritics. elaborate the various methods in
determining particle size? discuss any 2 methods in detail with
necessary equations.
06
(b) discuss 2 methods in determining particle surface area in detail
with necessary equations.
04
(c) Name the 2 fundamental properties of powders. discuss the
application of derived properties of powders in Pharmacy.
06
Q.5 (a) What is the importance of buffers in Pharmaceutical and biologic
systems?
06
(b) discuss and derive buffer formula. 04
(c) elaborate buffered isotonic solutions? discuss Class I method for
adjusting tonicity and pH.
06
Q. six (a) Differentiate ranging from a saturated and supersaturated solution.
discuss the solute solvent interactions for polar and nonpolar
solvents.
06
(b) discuss the effect of pressure, temperature and chemical reaction for
solubility of gasses in liquids.
05
(c) Differentiate ranging from ideal and real solutions. discuss the influence
of foreign substances in solubility of liquids in liquids
05
Q.7 (a) describe Surface tension and Interfacial tension. discuss the wire
frame apparatus and its implication.
05
(b) discuss Capillary rise method in determining Surface tension with
necessary equations.
05
(c) Write about the nernst and zeta potential and provide its importance in
pharmaceutical systems.
06

Earning:   Approval pending.