Question
What is meant by surface activity? Name three chemicals responsible for the surface activity of various detergents.

Answer

  1. Due to the property of holding on to both oil and water, soap water spreads easily on many types of surfaces.
  2. The property of a substance of spreading on a surface is called surface activity and the substance is called surfactant.
  3. Detergents are surface active.
  4. They increase the spreading and wetting ability of water by reducing its surface tension.
  5. Chemicals responsible for the surface activity of various detergents is phenol, Aprotinin.

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