. What is the difference between multimolecular and macromolecular colloids Give one example of each.


How are associated colloids different from these two types of colloids 

Best Answer

Explanation:

Difference between multimolecular and macromolecular colloids:

  • Multimolecular colloids form with low molecular weight molecules  whereas macromolecular colloids form with high molecular weights molecules.
  • Multimolecular colloids form with molecules  having diameter less than 1nm whereas macromolecular colloids form  molecules having diameter in colloidal range.
  • Multimolecular colloids have weak van der Waal force between the molecules .But macromolecular colloids have strong chemical force present in the molecules

Example:

  • Examples of multimolecular colloids: -Gold sol  consist of thousands of particles held together by vander Waals forces..
  • Examples of macromolecular colloids: cellulose, proteins

Associated colloids different from these two types of colloids:

  • Associated colloids are formed by electrolytes. When they are dissociated into ions, combine together to form ionic micelles ,size lies in the colloidal range, e.g. soaps.
  • Multimolecular colloids and Macromolecular colloids  -  form due to  aggregation of a large number of  molecules.

 

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