A solution is formed when a solute dissolves in a solvent. A dilute solution contains a small amount of solute, while a concentrated solution contains a large amount. A saturated solution contains the maximum amount of solute that can dissolve at a given temperature, and an unsaturated solution has not yet reached this maximum level of dissolved solute.

1. Solution

3. Concentration of a solution is the
amount of solute dissolved in fixed
amount of solvent
A solution containing small amount
of solute is known as dilute solution
A solution containing large amount
of solute is known as concentrated
solution

4. The solution obtained by
dissolving maximum amount of
solute at a given temperature is
known as saturated solution
The solution before
saturation is known as
unsaturated solution

5. Saturated solution Unsaturated solution

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