18 Questions
What is the term for the liberation of oil or water due to a deficient gel structure?
Bleeding
What is the term for taking up of liquid without volume increase?
Imbibition
What is the function of an emulsifying agent?
To stabilize the emulsion
What is the term for a two-phase system prepared by combining two immiscible liquids?
Emulsion
What is the term for a type of emulsion where water is the continuous phase?
Oil-in-water (O/W) emulsion
What is the theory that explains how surfactants lower surface tension and create a monomolecular layer around a droplet?
Plastic/Interfacial Film Theory
What is the purpose of geometric dilution in powder preparation?
To create a uniform mixture of the powder
What is the term for the mixture of two or more substances that form a eutectic mixture?
Eutexia
What is the purpose of comminution in powder preparation?
To reduce the particle size of the powder
What type of powder is administered by inhalation with the aid of dry-powder inhalers?
Aerosol powder
What is the purpose of adding an inert diluent to a powder?
To prevent eutexia
What is the term for the process of mixing powders using a mortar and pestle?
Trituration
What is the primary goal of micropulverization in powder preparation?
To reduce the particle size of the powder
What is the purpose of a wetting agent in powder preparation?
To displace air in the crevices of the particle
Which of the following is NOT a type of fluid energy grinding?
Ball milling
What is the primary purpose of geometric dilution in powder preparation?
To mix the powder with a vehicle
What is the characteristic of a single-phase gel?
It contains a high proportion of liquid
What is the primary difference between a gel and a magma?
The size of the suspended particles
Test your knowledge of pharmaceuticals with this quiz on raw material specifications, standard operating procedures, and finished product specifications. Learn about the characteristics of materials, step-by-step methods, and the importance of stability and purity in product performance.
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