Ch3ch2OH have the best water solubility due to lower no of carbon chain present.
Solubility is measured in terms of grams of solute per liter of solvent and describes how well a material dissolves in a solvent to form a solution. One fluid's (liquid or gas) solubility in another might be absolute (completely miscible; for example, methanol and water) or partial (oil and water dissolve only slightly). "Like dissolves like," in general (e.g., aromatic hydrocarbons dissolve in each other but not in water). Different solubilities, measured by the distribution coefficient (the ratio of a material's solubilities), are a key component of some separation techniques (such as absorption and extraction). In general, as temperature rises, so do the solubilities of solids in liquids, while they fall as temperature rises and rise with pressure for gases. At a certain temperature and pressure, a solution is said to be saturated when no additional solute can dissolve in it.
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