Emulsion Quiz

What is the primary purpose of an emulsifying agent in an emulsion?

• To enhance the color of the emulsion

• To provide flavor to the emulsion

• To reduce interfacial tension between immiscible liquids

• To increase the viscosity of the emulsion

Which type of emulsion has oil as the disperse phase in a continuous phase of water?

• Water-in-oil emulsion (w/o)

• Oil-in-water emulsion (o/w)

• Multiple emulsion

• Solid emulsion

What is a common disadvantage of emulsions?

• They are easy to transport

• They are stable at all temperatures

• They require shaking before use

• They require measuring devices

Which of the following is a naturally occurring emulsifying agent?

• Cetrimide

• Polysorbates

• Acacia

• Sodium lauryl sulfate

What does HLB stand for in the context of emulsifying agents?

• Hydrophobic-Lipid Bond

• Hydrophilic-Lipophilic Balance

• Hydrophobic-Lipophilic Balance

• Hydrophilic-Lipid Bond

Which stability problem in emulsions is reversible?

• Cracking

• Creaming

• Phase inversion

What is the main characteristic of a water-in-oil emulsion?

• It is always stable

• It cannot be used for injections

• Oil is the continuous phase

• Water is the continuous phase

What is the role of antioxidants in emulsions?

• To increase viscosity

• To prevent degradation of oils

• To prevent microbial contamination

• To enhance flavor

Which of the following tests can be used to identify the type of emulsion?

• Color test

• Stability test

• Conductivity measurement

• Viscosity test

What is the primary function of a surfactant in an emulsion?

• To stabilize the emulsion

• To enhance the color

• To increase the pH

• To provide nutrients