https://www.khanacademy.org/science/telangana-class-12-chemistry/x50160c6c142df488:surface-chemistry/x50160c6c142df488:colloids/e/classification-of-colloids 2026-06-10T12:50:37.816026878Z Classification of colloids This exercise tests how colloids are classified using observable behavior and simple scenarios. You will identify colloids based on physical state, nature of interaction (lyophilic vs lyophobic), and particle type. It also examines micelle formation above CMC and explains how soaps cleanse by trapping grease. Khan Academy exercise https://www.khanacademy.org/science/telangana-class-12-chemistry/x50160c6c142df488:surface-chemistry/x50160c6c142df488:colloids/e/properties-of-colloidal-solutions-1 2026-06-10T12:50:37.816026878Z Properties of colloidal solutions (1) This exercise tests key properties of colloidal solutions using short, applied scenarios. You will compare colligative properties, observe the Tyndall effect, and relate particle size and shape to color and ultramicroscopic appearance. It also examines Brownian movement and how temperature and viscosity influence particle motion. Khan Academy exercise https://www.khanacademy.org/science/telangana-class-12-chemistry/x50160c6c142df488:surface-chemistry/x50160c6c142df488:colloids/e/properties-of-colloidal-solutions-2 2026-06-10T12:50:37.816026878Z Properties of colloidal solutions (2) This exercise examines electrical properties of colloids through applied scenarios. It focuses on charge on colloidal particles, electrical double layer and zeta potential, and how electrolytes affect stability and aggregation. You will also distinguish electrophoresis and electroosmosis and apply the Hardy–Schulze rule to predict coagulation behavior. Khan Academy exercise