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In which of the following colloids is the dispersing medium a liquid?
Explanation
Colloids are heterogeneous systems consisting of a dispersed phase and a dispersion medium [1]. The dispersion medium is the continuous phase in which particles are distributed. Shaving cream is a foam, which is specifically defined as a colloid where a gas is dispersed through a liquid medium. In contrast, mist is a liquid aerosol where the dispersion medium is a gas. Jelly is a gel, which typically consists of a liquid dispersed within a solid framework. While some sources describe gels as solids dispersed in liquids, the standard classification for shaving cream consistently identifies its dispersion medium as liquid. Therefore, among the given options, shaving cream is the colloid where the dispersing medium is a liquid.
Sources
- [1] https://drklbcollege.ac.in/wp-content/uploads/2020/03/Colloids_English.pdf