Electric Double Layer Theory describes the charge arrangement around an emulsion droplet and its impact on stability. Which statement best reflects this theory?

• A. ALL statements are correct
• B. Only ONE statement is correct
• C. TWO statements are correct
• D. THREE statements are correct

Answer: (A)

Electric double layer theory shows how charge arranges itself right at the droplet surface, forming a compact inner layer and a more diffuse outer layer, which creates a surface potential that governs how strongly droplets repel each other. This repulsion, driven by the organized charge, counteracts the natural tendency of droplets to come together due to attractive forces, thereby influencing stability. If multiple statements describe aspects such as the existence of the surface charge, the resulting potential, and the way this potential affects whether droplets stay apart or aggregate, they all align with how the theory explains stability. Therefore, the choice that all statements are correct best reflects the theory, since it captures the interconnected roles of charge arrangement, the resulting potential, and the impact on emulsion stability.