Q1: Which of the following has the smallest least effect on the solubility of a solute into the solvent ?

ANS:D - Pressure

Among the given options, the one that has the smallest least effect on the solubility of a solute into the solvent is: (b) Nature of the solvent While all factors listed can influence solubility, the nature of the solvent typically has a smaller effect compared to the other factors. Solvents can vary in their ability to dissolve different solutes, but compared to factors like temperature and pressure, the impact of solvent nature is generally less significant. Temperature and pressure, for example, can have more pronounced effects on solubility by altering the kinetic energy of molecules or changing the physical conditions of the solution.