question_answer 54)

    A colloidal system having a solid substance as a dispersed phase and a liquid as a dispersion medium is classified as.......... (a) solid sol                         (b) gel             (c) emulsion                       (d) sol

Answer:

                    (d) Sol is a colloidal system in which solid substance is a dispersed phase and a liquid is a dispersion medium, e.g., paint, cell fluids etc. In paints solid colouring particles are dissolved in liquid dispersion medium.