3 Questions
Which of the following best describes a colloid?
A mixture with particles too small to be seen
Which technique can be used to separate colloidal particles?
Centrifugation
What happens to a beam of light passing through a colloid?
It scatters and becomes visible
Study Notes
Colloids
- A colloid is a mixture in which one substance consists of microscopically dispersed insoluble particles that are distributed throughout another substance.
- The particles in a colloid are larger than those in a solution, but smaller than those in a suspension.
Separating Colloidal Particles
- Centrifugation is a technique used to separate colloidal particles from a mixture.
Light Scattering in Colloids
- When a beam of light passes through a colloid, it scatters in all directions due to thepresence of dispersed particles, a phenomenon known as Tyndall effect.
Test your knowledge on colloids and their properties in this informative quiz. Learn about the characteristics of colloids and how they differ from other types of mixtures. Explore the methods used to determine if a substance is a colloid and discover the special techniques used to separate colloids from mixtures.
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