Solvent extraction is an equilibrium process and it is controlled by:
Correct answer: C. Distribution law
- A. Law of mass action
- B. The amount of solvent used
- C. Distribution law
- D. The amount of solute
Explanation
Solvent extraction is governed by the Distribution Law. This law states that a solute will distribute itself between two immiscible solvents in a constant ratio of concentrations at equilibrium, based on its relative solubility in each.
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About Experimental Techniques in Chemistry
Separation methods are selected according to differences in solubility, particle size, volatility and sublimation behaviour. Filtration and crystallisation separate insoluble or dissolved solids, sublimation isolates suitable volatile solids, distillation separates liquids by boiling point, and solvent extraction transfers a substance between immiscible solvents.
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