Q. what is the particle size of colloids?
Solution:
- A colloid is intermediate between a solution and a suspension.
- Suspension will separate out, a colloid will not.
- Colloids can be distinguished from solutions using the Tyndall effect.
- Light passing through a colloidal dispersion, such as smoky or foggy air, will be reflected by the larger particles and the light beam will be visible.
- Particle size is 10-1000 Angstroms. (1micrometre=10000Angstroms)
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