Question

A supersaturated solution is a Metastable state of solution in which solute concentration:
(A) is equal to the solubility of the substance in water
(B) is more than its solubility
(C) is less than its solubility
(D) continuously changes

Answer 1

Hint: When the maximum amount of substance soluble in a specified amount of solvent at a specific temperature. However, the concentration of ions in a solution may be diluted, saturation, or supersaturated. Depending on the nature of solvents, polar solutes dissolve in polar solvents and non-polar solutes dissolve in non-polar solvents.

Complete step by step answer:
When a solid solute is added to the solvent, the solute concentration increases while it dissolves in the solvent. Thus, the process is known as dissolution.
Sometimes solute particles form a colloidal solution with solid solute particles and get separated from the solution. This process is known as crystallization.
When these two processes occur at the same rate, at this stage the number of solute particles going into the solution is equal to the solute particles separated. This stage a dynamic equilibrium state reached.
$solute+solvent\rightleftharpoons solution$

When the solution in dynamic equilibrium with undissolved solute is the saturated solution and the solubility of solute particles in the solvent is maximum. Then a Metastable state will form which is a characteristic of a supersaturated solution and this state leads to a saturated solution after some time.
Hence, a supersaturated solution is a Metastable state of solution in which solute concentration is more than its solubility.
So, the correct answer is “Option B”.

Note: The solubility product describes the concentration of s, for a saturated solution, which means the solution at maximum equilibrium with molecules and ions of the solution. This equilibrium constant measures the maximum amount of ions and it changes with temperature.