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Potassium chloride has solubility of 32...

Potassium chloride has solubility of 32 g at room temperature in water. However its solubility decreases to 2.4 g in alcohol at the same temperature . It becomes completely insoluble in benzene . How do you account for this variation ?

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Water has high dielectric constant . KCl being ionic compound is highly soluble in water. Alcohol has a lower dielectric constant. Hence solubility of KCl in alcohol is less. Benzene has still lower value of dielectric constant . Therefore KCl becomes completely insoluble in benzene.
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PEARSON IIT JEE FOUNDATION-WATER, SOLUTION, SOLUBILITY AND HYDROGEN-Concept Application Level-2
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