Question

Which of the following is multimolecular colloid

A.)lyophilic Sol B.)starch C.) gold Sol. D) soap solution

Answer 1

Multimolecular Colloids: -When a large number of atoms or small molecules (having diameters of less than 1nm) of a substance combine together in a dispersion medium to form aggregates having size in the colloidal range, the colloidal solutions thus formed are called multimolecular colloids. The species (atoms or molecules) constituting the dispersed particles in multimolecular colloids are held together by Vander Waals’ forces.

The gold sol, sulphur sol etc. are some examples of multimolecular colloids. A gold sol may contain particles of various size composed of several atoms of gold.

So ans is gold sol is a multimolecular colloid.