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What is a colloidal solution?What are …

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What is a colloidal solution?What are the properties of a colloid?.

Posted by Sayantika Malobika 4 years, 1 month ago

CBSE > Class 09 > Science

2 answers

M D Vishaal Narayanan 4 years, 1 month ago

Shows tindall effect

Gaurav Seth 4 years, 1 month ago

Colloids

A colloid is a kind of solution in which the size of solute particles is intermediate between those in true solutions and those in suspensions.
For Example: - Soap solution, Milk, Ink, Blood and solutions of synthetic detergents.

In a true solution, the solute particles are so small that they cannot scatter or reflect light rays falling on them.
In a colloidal solution (or colloid), the particles are big enough to scatter light.
- If a beam of light is put on a colloidal solution kept in a beaker in a dark room, the path of light beam is illuminated and becomes visible when seen from the side.
- The path of light beam becomes visible because colloidal particles are big enough to scatter light falling on them in all directions.

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