Mention the conditions in which a solute becomes solvent and solvent becomes solute.

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Solution

Every solution consists of a solvent and one or more solutes. Solvents in a solution is its constituent substances which has the same state of aggregation as that of the solution.
Generally, the component present in greater amount than any or all the other components is called the solvent.
For the solubility of solids in liquids, where the liquid is present in large excess over the solid, there is no ambiguity in these terms, the solid being the solute and the liquid being the solvent.
However, if the solution is such that the state of aggregation of the solution is the same as that of a component present in smaller amount, the latter is called the solvent.
For example, in a syrup (liquid solution) containing 60% sugar and 40% water, water is termed as the solvent.

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T_{b}^{*}

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