Which of the following is sparingly soluble in cold water and fairly soluble in hot water? — p Block Elements Chemistry Question

💡 Solution & Explanation

Step 1: Most lead salts are highly insoluble, but their solubilities can vary significantly depending on water temperature. Step 2: Lead(II) chloride (PbCl2) is sparingly soluble in cold water (Ksp is relatively low at room temperature). Step 3: However, its solubility increases substantially in hot water, making PbCl2 fairly soluble in hot water. Thus, option (b) is correct.