Answer:
Explanation:
Properties of a colloid
• A colloid is a heterogeneous mixture.
• The size of particles of a colloid is too
small to be individually seen by naked
eyes.
• Colloids are big enough to scatter a
beam of light passing through it and
make its path visible.
• They do not settle down when left
undisturbed, that is, a colloid is quite
stable.
• They cannot be separated from the
mixture by the process of filtration. But,
a special technique of separation known
as centrifugation (perform activity 2.5),
can be used to separate the colloidal
particles.
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