Chemistry
Identify the dispersed phase and dispersion medium in the following examples of colloids :
(a) Fog
(b) Cheese
(c) Coloured gem stones
Water
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Answer
(a) Fog
Dispersed phase : Liquid (tiny water droplets)
Dispersion medium : Gas (air)
(b) Cheese
Dispersed phase : Liquid (water droplets)
Dispersion medium : Solid (protein/fat matrix)
(c) Coloured gem stones
Dispersed phase : Solid (metal oxides or impurities giving colour)
Dispersion medium : Solid (the gemstone itself, like silica)
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