GENERAL KNOWLEDGE

Detailed explanation-1: -Answer: Supersaturated solution : The solution which contains more solute than that could be dissolved by the solvent under normal conditions is known as a supersaturated solution. It can be done by heating the solution.

Detailed explanation-2: -When a solution that has had more solute dissolved at a higher temperature is now cooled, it becomes supersaturated at the lower temperature. Because that supersaturated solution holds more solute than is stable at the lower temperature, crystals start to form.

Detailed explanation-3: -A supersaturated solution contains more dissolved solute than required for preparing a saturated solution and can be prepared by heating a saturated solution, adding more solute, and then cooling it gently. Excess dissolved solute crystallizes by seeding supersaturated solution with a few crystals of the solute.

Detailed explanation-4: -Like a supercooled or superheated liquid, a supersaturated solution is unstable. Consequently, adding a small particle of the solute, a seed crystal, will usually cause the excess solute to rapidly precipitate or crystallize, sometimes with spectacular results.

Detailed explanation-5: -A solution that has not reached its maximum solubility is called an unsaturated solution. This means that more solute could still be added to the solvent and dissolving would still occur. A solution that has reached the maximum solubility is called a saturated solution.