The size of the particles dispersed in an emulsion range between _________. 

The correct answer is 10 Å - 100 Å.

Key Points

• The size of the particles dispersed in an emulsion range between 10 Å - 100 Å.
• An emulsion is a fine dispersion of minute droplets of one liquid in another in which it is not soluble or not mixable.
  • In other words, it can be defined as a colloid consisting of two or more non-homogenous type of liquids wherein one of the liquid contains the dispersion of the different form of liquids.
  • Typical example is mixture of oil and water.
• The emulsion is primarily classified into two types:
  • Oil in water (O/W type) emulsions
    • In this type of emulsion, oil acts as a dispersed phase, and water acts as the dispersion medium.
    • Example: Milk, Vanishing cream, etc.
  • Water in oil (W/O type) emulsions
    • In this type of emulsions, water acts as a dispersed phase, and oil acts as the dispersion medium.
    • Example: Cold cream, butter, cod liver oil, etc.
• The size of the particles dispersed in an emulsion range between 1 nm and 10 nm, i.e. 10 Å - 100 Å.