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Question

Differentiate between a Suspension and a colloid.


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Solution

Differences between a Suspension and a colloidal are as follows.

Suspension

Colloid

The diameter of suspension particles is more than 10-5cm.The diameter of colloidal particles is between 10-7cm to 10-5cm.
The particles of suspension settle down when the suspension is kept undisturbed.The particles of a colloidal solution do not settle down when the colloid is kept undisturbed.
The particles of suspension can be separated from solvent by the process of filtration.The particles of colloid can not be separated from solvent by the process of filtration.
More scattering of light takes place in suspensions, because of the bigger size of particles.The particles of a colloidal solution scatter light. when a strong beam of light is passed through the colloidal solution, the path of the beam becomes visible(Tyndall effect).
A suspension are opaque in nature.Colloidal solutions are not transparent, but translucent in nature.
The particles of a suspension solution are visible to naked eyes.The particles of a colloidal solution are visible under a powerful microscope.

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