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define colloidal solution....???

Dear Student,

A colloidal solution is a heterogeneous mixture in which the solute particles of around 1-100 nm in size are disperesed in the solvent.

Example: milk, gel

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Hi

COLLOIDAL SOLUTION

A colloid that has a continuous liquid phase in which a solid is suspended in a liquid
 

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 A colloid is a type of chemical mixture where one substance is dispersed evenly throughout another. The particles of the dispersed substance are only suspended in the mixture, unlike a solution, where they are completely dissolved within. This occurs because the particles in a colloid are larger than in a solution - small enough to be dispersed evenly and maintain a homogenous appearance, but large enough to scatter light and not dissolve. Because of this dispersal, some colloids have the appearance of solutions. A colloidal system consists of two separate phases: a dispersed phase (or internal phase) and a continuous phase (or dispersion medium). A colloidal system may be solid, liquid, or gaseous.

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  1. Chemistry.
    1. A system in which finely divided particles, which are approximately 10 to 10,000 angstroms in size, are dispersed within a continuous medium in a manner that prevents them from being filtered easily or settled rapidly.
    2. The particulate matter so dispersed.
  2. Physiology. The gelatinous product of the thyroid gland, consisting mainly of thyroglobulin, which serves as the precursor and storage form of thyroid hormone.
  3. Pathology. Gelatinous material resulting from colloid degeneration in diseased tissue.

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