Pressure has nearly no effect on the solubility of a solute in a solution as solute is nearly incompressible.
Thus, it’s solubility cannot be increased by pressure.
The solubility of solute depends on its nature and nature of the solvent.
The solubility of a solute increases with the increase in temperature as the molecules easily break at a higher temperature, due to the increase in the activation energy.
Thus, Option (iii) is the correct answer.
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