All Questions page - 740

Which of the following statements regarding emulsions is false?
a. Emulsions cannot be separated into their constituent liquids
b. Emulsions show Brownian motion
c. Emulsions show Tyndall effect
d. Emulsions exhibit properties like Electrophoresis and Coagulation

What is the dispersion of a liquid in another liquid called?
a. Gel
b. Foam
c. Emulsion
d. Aerosol

The particle size in suspension is
a. less than 10³ nm
b. 10² nm
c. Greater than 10³
d. 10 nm

Creaming is?
a. Reversible
b. Irreversible
c. Both
d. Difficult to predict

Upward creaming is observed in?
a. W/O
b. O/W
c. Both
d. Micro

Pharmaceutical suspensions are generally…
a. Flocculated
b. De-flocculated
c. Both
d. None

Rate of sedimentation is high in?
a. Flocculated
b. De-flocculated
c. Both
d. None

Cake formation is characteristic feature _
a. Flocculated
b. De- flocculated
c. Thixotropic suspension
d. Structured suspension

For Ideal suspension ,the sedimentation volume should be
a. Zero
b. Equal to one
c. More than one
d. Less than one

Suppository bases ___
a. Maintain shape
b. Helps in insertion into the body cavity
c. Theobroma oil is example
d. All of the above

Which of the following is NOT an ideal property of bases?
a. Shall be non-irritant
b. Shall not interfere in release
c. Shall be compatible with drugs
d. None of the above

Which of the following is an advantage of suppositories?
a. Need to store at low temp.
b. Cost-expensive
c. Drug may be degraded by microbial
d. Can be given to unconscious patient

Which of the following is an example of Hydrophilic bases?
a. Hydrogenated oils
b. Emulsified cocoa butter
c. Glycero-gelatin base
d. None of the above

Which of the following is an example of Oily bases?
a. Witespol
b. Emulsified cocoa butter
c. Glycero-gelatin base
d. Massupol

Which of the following is an example of Synthetic base?
a. Witespol
b. Emulsified cocoa butter
c. Glycero-gelatin base
d. Hydrogenated oils

Which of the following is NOT an example of Hydrophilic bases?
a. Soap-glycerin base
b. Emulsified cocoa butter
c. Glycero-gelatin base
d. None of the above

Which of the following is substitute for Theobroma oil?
a. Hydrogenated oils
b. Emulsified cocoa
c. Polyethylene-Glycol
d. None

_______ Powders consist of more than one ingredient.
a. Simple powders
b. Compound powders
c. Both
d. None of the above