PP-II Unit2

Emulsion: a ____________ of two or more liquids

• Colloid

• solution

• suspension

• All the above

Which one is not a colloid

• Foam

• Gel

• Emulsion

• Coffee

What type of emulsion is a w/o/w emulsion?

• Primary emulsion

• Microemulsion

• Multiple emulsion

• Monoemulsion

The purpose of an emulsifier is to ___________ .

• Decrease surface area in a suspension

• Reduce the interfacial tension between immiscible phase

• Minimize the size of globules

• Improve medication taste

Tyndall effect occurs due to

• Absorption of light

• Reflection of light

• Transmittance of light

• Scattering of light

________________: A cloudy liquid containing insoluble particles.

• Suspension

• Solution

• Gel

• none of above

  What does F= 1 signify?

• There is no sedimentation

• Suspension is ideal

• Both a and b

• There is full sedimentation

Sedimentation volume is a

• F = V u / VO

• F = V u / V1

• F = V u / V2

• all the above

Continuous phase in suspension is usually

• liquid or oil

• salt

• powder

• all the above

Types of Settling Includes

• Discrete

• Flocculent

• Particle Interaction

• All of the above