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Dispersed Systems Quiz

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Questions and Answers

What is the dispersed phase in emulsions?

A liquid that is fully soluble in the dispersing phase

A solid substance distributed throughout a liquid medium

A liquid that is neither soluble nor miscible with the dispersing phase (correct)

A gas that is dispersed in a liquid medium

What is the purpose of preparing suspensions?

Long shelf life

Stability, ease of administration, taste masking (correct)

High solubility

Immediate drug release

What are the particles size range for colloidal dispersions?

Less than 0.5 μm

0.5 to 10 μm (correct)

10 to 50 μm

More than 50 μm

What is the dispersed phase in aerosols?

<p>Small air bubbles throughout a solution or an emulsion</p> Signup and view all the answers

What is the dispersing phase in a colloidal dispersion?

<p>Liquid or semi-solid</p> Signup and view all the answers

Study Notes

Emulsions

The dispersed phase in emulsions refers to the phase that is dispersed or broken down into droplets, usually a liquid, and is scattered throughout another liquid.

Suspensions

The purpose of preparing suspensions is to create a uniform mixture of two or more substances, where one substance is suspended in another, often for pharmaceutical or medical applications.

Colloidal Dispersions

Colloidal dispersions have particle sizes ranging from 1 - 100 nanometers (nm) in diameter.
The dispersing phase in a colloidal dispersion is the medium or substance in which the particles are dispersed, such as a liquid or gas.

Aerosols

The dispersed phase in aerosols refers to the solid or liquid particles that are suspended in a gas, such as air or oxygen.

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Description

Test your knowledge of pharmaceutical dosage forms and drug delivery systems with this quiz on dispersed systems. Explore the concepts of dispersed phase, dispersion medium, and specific properties of emulsions. Prepare for your finals and enhance your understanding of this crucial aspect of pharmaceutical science.