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1) It is said to be diluted when thequantity of solvent is more than that of solute. It is said to be concentrated if the quantity of ofsolute is more than that of thesolvent. It is said to be saturated when no more solute can be added to the solution at a given temperature
2) Crystallization is the bettermethod of separating the mixturethan evaporation. This is because, on evaporation, some of the solid particles in mixture get decomposed leaving behind impurities whereas, incrystallization, pure crystals of solids are obtained.
3) Chromatography is a technique used for the separation of a mixture of solutes brought about by distribution of dissolved material between two immiscible phases, one of which is mobile phase and the other part is stationary phase
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