Interpretation:
Properties of suspension, colloids and solutions have to be written in tabular form.
Concept introduction:
A solution is a homogeneous mixture of two or more components. The solute particles are fully dissolved in the dispersion medium. The components of a solution are atoms, ions, or molecules which are smaller in diameter.
A colloid is a heterogeneous mixture in which the dispersed particles are intermediate in size between those of a solution and a suspension. The particles are spread evenly throughout the dispersion medium, which can be a solid, liquid, or gas. The dispersed particles of a colloid are intermediate in size between those of a solution and a suspension. Due to intermediate size of the dispersed particles, they do not settle out from the dispersion medium upon standing.
A suspension is a heterogeneous mixture in which some of the particles settle out of the mixture upon standing. The particle size in a suspension are much larger than those of a solution, so they easily settle out from the dispersion medium due to the gravity.

Answer to Problem 8SSC
A solution is a homogeneous mixture of two or more components.
A colloid is a heterogeneous mixture in which the dispersed particles are intermediate in size between those of a solution and a suspension.
A suspension is a heterogeneous mixture in which some of the particles settle out of the mixture upon standing.
Explanation:
Solution | Colloids | Suspensions |
Homogeneous mixture | Heterogeneous mixture | Heterogeneous mixture |
Particle size: 0.01 – 1nm ; atoms, ions or molecules | Particle size: 1 – 100nm, dispersed; large molecules or aggregates | Particle size: over 100nm, suspended: large particles or aggregates |
Pass easily through ordinary filter paper and also through the animal membrane | Pass easily through ordinary filter paper but not through the animal membrane | Do not even pass through ordinary filter paper |
Do not settle down on standing | Do not settle downon standing | Particles settle out on standing |
Cannot be separated by filtration | Cannot be separated by filtration | Can be separated by filtration |
Do not show Brownian motion | Show Brownian motion | Do not show Brownian motion |
Do not scatter light | Scatter light (Tyndall effect) | May either scatter light or be opaque |
Diffuse quickly | Diffuse slowly | Do not diffuse |
Salt dissolved in water is an example of true solution | Milk is an example of colloid | Muddy water is an example of suspension |
- A solution is a homogeneous mixture.
- A colloid is a heterogeneous mixture.
- A suspension is a heterogeneous mixture.
Explanation of Solution
Solution | Colloids | Suspensions |
Homogeneous mixture | Heterogeneous mixture | Heterogeneous mixture |
Particle size: 0.01 – 1nm ; atoms, ions or molecules | Particle size: 1 – 100nm, dispersed; large molecules or aggregates | Particle size: over 100nm, suspended: large particles or aggregates |
Pass easily through ordinary filter paper and also through the animal membrane | Pass easily through ordinary filter paper but not through the animal membrane | Do not even pass through ordinary filter paper |
Do not settle down on standing | Do not settle downon standing | Particles settle out on standing |
Cannot be separated by filtration | Cannot be separated by filtration | Can be separated by filtration |
Do not show Brownian motion | Show Brownian motion | Do not show Brownian motion |
Do not scatter light | Scatter light (Tyndall effect) | May either scatter light or be opaque |
Diffuse quickly | Diffuse slowly | Do not diffuse |
Salt dissolved in water is an example of true solution | Milk is an example of colloid | Muddy water is an example of suspension |
- A solution is a homogeneous mixture.
- A colloid is a heterogeneous mixture.
- A suspension is a heterogeneous mixture.
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