Question

28. What is a surfactant? Explain how it works.

Answer 1

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• surfactant, also called surface-active agent, substance such as a detergent that, when added to a liquid, reduces its surface tension, thereby increasing its spreading and wetting properties.
• In the dyeing of textiles, surfactants help the dye penetrate the fabric evenly.
• They are used to disperse aqueous suspensions of insoluble dyes and perfumes.