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Which of the following is an example of a sol?
Foam
Milk of magnesia
Rubber
Face cream
Milk of magnesia
A sol is a colloidal suspension in which solid particles are dispersed in a liquid medium. Among the given options, milk of magnesia is a classic example of a sol, consisting of solid magnesium hydroxide Mg(OH)2тАЛ particles dispersed in water.
A sol is a colloidal suspension in which solid particles are dispersed in a liquid medium. Among the given options, milk of magnesia is a classic example of a sol, consisting of solid magnesium hydroxide Mg(OH)2тАЛ particles dispersed in water.
Think of a sol like a muddy mixture where very fine, invisible-to-the-eye particles of soil are floating in a cup of water, making the water look opaque or milky.
Sol = Solid in Liquid
Sol=Solid┬а(Dispersed┬аPhase)+Liquid┬а(Dispersion┬аMedium)
A sol is formed when the dispersed phase is a solid and the dispersion medium is a liquid. Because the solid particles are tiny enough to remain suspended without settling quickly under gravity, they exhibit properties of a colloid, such as the Tyndall effect.
A sol is a type of colloid with a solid-in-liquid state.
Milk of magnesia is a suspension of Mg(OH)2тАЛ in water.
Sols are characterized by stability and the Tyndall effect.
Other examples include paints and cell fluids.
High surface area due to small particle size.
Uniform dispersion of active substances in liquid.
Can settle over long periods without stabilization agents.
Subject to coagulation in the presence of electrolytes.
Pharmaceuticals (Antacids like Milk of Magnesia)
Paints and inks manufacturing
Foam is Gas in Liquid (e.g., whipped cream).
Rubber (in solid state) is usually classified as a solid sol, but in the context of these options, Milk of Magnesia is the standard liquid-based sol.
Face cream is typically an emulsion (Liquid in Liquid or Oil in Water).
B is correct тАФ Milk of magnesia is a representative example of a sol, which is a colloidal suspension of solid particles in a liquid medium.
Always remember the classification of colloids based on physical states: Sol (Solid/Liquid), Foam (Gas/Liquid), Emulsion (Liquid/Liquid), and Aerosol (Solid/Gas or Liquid/Gas).