10 Questions
What are the optical properties of colloidal dispersion?
Faraday-tyndall effect (light scattering)
What are the kinetic properties of colloidal dispersion?
Brownian motion, diffusion, osmosis, sedimentation, viscosity
What are the sources of electric charge on the particles in colloidal dispersion?
Not provided
What is the isoelectric point?
Not provided
How is the Faraday-Tyndall effect (light scattering) used in colloidal dispersions?
To determine the molecular weight of the colloid and to obtain information about the shape and size of the particles
What property is used to determine the molecular weight of a colloid and obtain information about the shape and size of its particles?
Light scattering (Faraday-Tyndall effect)
Which property causes true solutions to appear clear and colloidal dispersions to appear turbid?
Light scattering (Faraday-Tyndall effect)
What causes the visible cone resulting from the scattering of light by colloidal particles in a Faraday-Tyndall effect?
Electric charge on particles
Which process in colloidal dispersions involves the random movement of particles due to collisions with solvent molecules?
Diffusion
What is the term for the point at which a colloid has no net electrical charge and therefore tends to aggregate?
Isoelectric point
Test your knowledge of colloidal dispersion properties, the sources of electric charge on particles, and the concept of isoelectric point in pharmaceutical dosage forms. This quiz covers key concepts from Lecture 6 of the Pharmaceutics Department at MSA University's Faculty of Pharmacy.
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