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Answers
Answer:
(1)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 can be used to separate the colloidal particles.
Difference Between Colloid and Suspension
Definition
Colloid: Dispersion system with a liquid and solid component, with particles size between 1 and 100 nm is called colloid.
Suspension: Dispersion system with a liquid and solid component, with particles size above 100 nm is called suspension.
Particle size
Colloid: The particle size is 1-100 nm.
Suspension: The particle size is above 100 nm.
(2).Components of colloids are dispersed phase and dispersion medium.
(3).Because CuSo4 solution is heterogeneous while, milk is a colloid
that's why, it shows Tyndall effect