Which of the following is a colloid

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Which of the following is a colloid

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As a child, you may have made suspensions such as mixtures of mud and water, flour and water, or a suspension of solid pigments in water, known as tempera paint. These suspensions are heterogeneous mixtures composed of relatively large particles that are visible or that can be seen with a magnifying glass. They are cloudy, and the suspended particles settle out after mixing. On the other hand, when we make a solution, we prepare a homogeneous mixture in which no settling occurs and in which the dissolved species are molecules or ions. Solutions exhibit completely different behavior from suspensions. A solution may be colored, but it is transparent, the molecules or ions are invisible, and they do not settle out on standing.

Which of the following is a colloid

A colloid is primarily a heterogeneous mixture in which the minute particles of one substance are dispersed in another substance, called the dispersion medium. The minute particles here are 1 to nanometers in diameter but they still remain suspended and do not settle at the bottom of the mixture. They are visible under an optical or an electron smaller particles microscope. A colloid is a mixture in which one substance which has fine particles dispersed phase mixed into another substance dispersion medium. The particles of the colloids have a range from 1 to nm in diameter. The solution is called colloidal dispersion because the particles of solutions do not mix or settle down. They are dispersed in the solution. The substances which are dispersed in the solution are called the dispersed phase, and the solution in which it is dispersed is called dispersion medium.

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Colloidal dispersion or colloid is a heterogeneous system, which is neither a suspension nor a solution. Here very fine particles known as dispersed phase are present throughout the dispersion medium.

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