Top 250+ Solved Physical Pharmaceutics 2 MCQ Questions Answer
Q. Downward creaming means ........ rate of sedimentation
a. negative
b. positive
c. same
d. no change
Q. Density of oily phase increased by addition of .......
a. Butter
b. Coconut oil
c. water
d. brominated oils
Q. Near CMC, micelles of the surfactant molecules assume the shape of
a. spherical
b. layered
c. rod shaped
d. cylindrical
Q. Which one of the following emulsifier is used to stabilise the emulsion of W/O type
a. SLS
b. Span 20
c. Tween 20
d. Tragacanth
Q. Creaming in emulsion can be controlled by regulating
a. density of dispersed phase
b. density of dispersion medium
c. globule size
d. volume of dispersion medium
Q. An emulsifier is considered to be ideal, if it is soluble in
a. Aqueous phase
b. oily phase
c. A & B
d. none of the above
Q. In the stability of emulsion, which important instability step should be prevented?
a. Breaking
b. Coalescence
c. Flocculation
d. Creaming
Q. Emulsion containing more than two phases are called as
a. Mixed emulsion
b. Multiple emulsion
c. Complex emulsion
d. none of the above
Q. Emulsion is
a. stable preparation
b. thermodynamically unstable preparation
c. biphasic system
d. B & C
Q. Which of the following is/ are the theories of emulsification?
a. Monomolecular adsorption theory
b. Multimolecular adsorption theory
c. Solid Particle Adsorption theory
d. All of the above
Q. Which of the following is not the cause of Instability in emulsion
a. Upward Creaming
b. Phase inversion
c. Downward creaming
d. Mottling
Q. Which of the following is a reversible phenomenon
a. Creaming
b. Coalescence
c. Breaking
d. All of the above