Top 250+ Solved Physical Pharmaceutics 2 MCQ Questions Answer
Q. The phase inversion occur due to
a. changes in type of emulsifying agent
b. change in phase volume ratio.
c. Both a and b
d. None of the above
Q. Which of the following is used as antioxidants for emulsified systems
a. Dodecyl gallate,
b. Butylated hydroxyanisole (BHT),
c. Butylated hydroxytoluene (BHT)
d. All of the above
Q. Which of the following is identification test for emulsion
a. Dilution test
b. Cobalt Chloride Test
c. Conductivity Test
d. All of the above
Q. When an emulsion is exposed to ultra-violet radiations. If the continuous fluorescence is observedunder microscope, then it is_____________ type emulsion.
a. w/o
b. o/w
c. microemulsion
d. Nano emulsion
Q. Dry Gum Method is also known as
a. Continental method.
b. English method
c. Bottle method
d. Forbe's method
Q. In Dry gum method, 4:2:1 consist of
a. 4 parts oil, 2 parts water, and 1 part emulsifier
b. 4 parts water, 2 parts oil, and 1 part emulsifier
c. 4 parts emulsifier, 2 parts water, and 1 part emulsifier
d. 4 parts oil, 2 parts emulsifier and 1 part water
Q. The rheological property of emulsion can be controlled by
a. nature and concentration of emulsifying system
b. particle size of dispersed phase
c. viscosity of continuous phase
d. All of the above
Q. The suspensions having particle size................... are categorized as coarse suspension.
a. Greater than ~1 mm
b. Greater than-10 mm
c. Both of the above
d. None of the above
Q. ............ exists when dispersed solid particles in a suspension retain change in relation their adjoiningliquid medium.
a. Surface area
b. Surface potential
c. Surface volume
d. None of the above
Q. The equal distribution of all the ions in solution retain by……
a. Electric forces
b. Thermal motion
c. Both of the above
d. None of the above
Q. The flocculated suspension is one in which zeta potential of particle is…… .
a. -05 to +05 mV
b. -10 to+10 mV
c. -20 to+20 mV
d. -30 to+30 mV
Q. ...... determines the movement of charged particles via a liquid under the impact of anapplied potential difference.
a. Electrophoresis
b. Electrosmosis
c. Surface charge
d. Static movement
Q. ..........is produced by forcing a liquid to course through a stationary solid phase.
a. Electrosmosis
b. Electrophoresis
c. The sediment potential
d. The streaming potential
Q. The flocculated suspensions sediment.............
a. Slowly
b. Quickly
c. More quickly
d. None of the above
Q. ..........suspension involves individual particle settling.
a. Flocculated
b. Deflocculated
c. Both of the above
d. None of the above