True solution | Suspension | Colloidal solution | |
Homogenous mixture | Heterogeneous mixture | Heterogeneous mixture | |
Appearance: Transparent | Appearance: Opaque | Appearance: Translucent | |
Particle size: very small, cannot be seen by naked eye | Particle size: large, can be seen by naked eye | Particle size: between true solution and suspension, cannot be seen by naked eye | |
Solute particles do not settle down when left undisturbed | Solute particles settle down when left undisturbed | Solute particles do not settle down when left undisturbed | |
Filtration separation -not possible | Filtration separation - possible | Filtration separation - not possible | |
E.g. salt solution | E.g. sand in water |
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