On which of the following is the solubility of a gaseous substance dependent? I. Nature of solvent II. Nature of solute III. Temperature IV. Pressure

The solubility of a gaseous substance is dependent on the nature of solvent, temperature, and pressure. Therefore, the correct option is I, III and IV only. - The nature of the solvent affects the solubility of a gas as different gases have different solubility in different solvents. For example, oxygen is more soluble in water than in organic solvents. - The temperature affects the solubility of a gas in a solvent as the solubility of gases generally decreases with an increase in temperature. - The pressure also affects the solubility of a gas in a solvent as the solubility of gases generally increases with an increase in pressure.