Science
Explain the following, giving examples.
(a) Saturated solution
(b) Pure substance
(c) Colloid
(d) Suspension
Matter
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Answer
(a) Saturated solution — A saturated solution is one which cannot dissolve more of the solute at a given temperature.
Example: Excess carbon leaves off as bubbles from a carbonated water solution saturated with carbon.
(b) Pure substance — A substance is said to be pure when it comprises of only one kind of molecules or atoms.
Example: Sulphur, diamonds etc.
(c) Colloid — A colloid is a heterogeneous mixture in which the size of solute particles is intermediate between true solution and suspension and it shows tyndall effect.
Examples: Soap solution, starch solution, milk.
(d) Suspension — It is a heterogeneous mixture in which the small particles of a solid are spread throughout a liquid without dissolving in it. Particles of a suspension are visible to the naked eye.
Examples: Chalk water mixture, muddy water etc.
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