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In a pair of immiscible liquids, a common solute dissolves in both and the equilibrium is reached. Then the concentration of the solute in upper layer is

1. In fixed ratio with that in the lower layer
2. Same as the lower layer
3. Lower than the lower layer
4. Higher than the lower layer

Correct answer: In fixed ratio with that in the lower layer

Solution

When a solute is distributed between two immiscible liquids at equilibrium, its concentrations in the two layers are in a fixed ratio, governed by the distribution law.

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