Which type of colloid is formed when a liquid is dispersed in a solid medium?

💡 Solution & Explanation

A gel is a colloidal system where a liquid is dispersed in a solid medium, creating a semi-solid material such as cheese, butter, or gelatin. In contrast, emulsions feature a liquid dispersed in another liquid, while sols consist of solid particles dispersed in a liquid. Understanding dispersed phases and dispersion media is crucial for mastering surface chemistry topics in competitive general science sections.