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Polymers — Chemistry STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceChemistryPolymers3 Marks
Question
Write one difference between each of the following :
  1. Multimolecular colloid and Macromolecular colloid.
  2. Sol and Gel.
  3. O/W emulsion and W/O emulsion.
✓

Answer

  1. Multimolecular colloid : a large number of atoms or smaller molecules of a substance aggregate together to form species having size in the colloidal range.
Macromolecular: Large sized molecules whose particle size lies in the colloidal range.
  1. Sol are solid dispersed in liquid while gel are liquid dispersed in solid.
  2. In O/W emulsion, water acts as dispersion medium while in W/O oil acts as dispersion medium.

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