When the solute concentration in solution 1 is lower than the solute concentration in solution 2, solution 2 is concentrated solution .
The dilute solution and concentrated solution is relative terms.
Now in any solution there are just solute and solvent.
If amount of solute is comparatively high as compare to amount of solvent in solution then solution is called concentrated solution. Similarly , If amount of solute is comparatively low as compare to amount of solvent in solution then solution is called dilute solution.
If the amount of solvent is more in a solution then the amount of solute would be less.Again if the amount of solvent is less in a solution then amount of solute is more.
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