. How are colloids classified on the basis of (i)physical states of components


How are colloids classified on the basis of

            (i)   physical states of components

            (ii) nature of dispersed phase and

            (iii)       interaction between dispersed phase and dispersion medium

Best Answer

(i)         Same as described in question 9.

            (ii) On the basis of nature of dispersed phase, colloids are classified as :

                  (a) Multimolecular colloids, e.g., gold sol, sulphur sol etc.

                  (b) Macromolecular colloids, e.g., cellulose, starch, etc. i

                  (c) Associated colloids, e.g., soaps, synthetic detergents.

            (iii) On the basis of interaction between dispersed phase and dispersion medium, colloids are of two types :

                  (a) Lyophilic colloids, e.g., gum, gelatin etc.

                  (b) Lyophobic colloids, e.g., metals, their sulphides etc.

 

 

 

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